If I have this correct, here is a mini-synopsis of what happened:
1- Sportsbet state in their ToS:
12. BONUS RULES
12.1 General
12.1.1 Bonuses are available at our discretion and we reserve the right to restrict the availability of any bonus to any player at any time.
12.1.2 Fraudulent or multiple entries will not be accepted, neither will entries made in breach of these Standard Promotional Terms or the specific promotional terms.
12.1.3 Some of our Bonuses may be offered to you on a complimentary basis or when taking part and completing promotions through the website.
12.1.4 All promotions are not available to players using an e-wallet when depositing funds.
12.1.5 Players who are Self-Excluded are not eligible to receive any bonus. Players that Self-Exclude during the course of bonus qualification or after a Bonus Token has been placed but before any winnings (Cash or Bonus) were accumulated, will not be eligible to receive any winnings (whether as Cash or as a Bonus Token)
12.1.6 Only one Bonus offer per player, per household, per shared computer and shared IP address unless otherwise stated. We do not allow “Multiple Accounts”. Player account details will be determined by any or all combination of name, mailing address, email address, computer (serial), IP address, payment (deposit/withdrawal) method used and any other form of identification.
12.1.7 By accepting any of our bonuses, you agree to adhere to these Bonus Rules and any applicable rules made available to you before or when accepting a Bonus with us. You must also comply with our full Terms and Conditions at all times.
12.1.8 We reserve the right to withhold any Bonus, associated winnings whether from cash or bonus wagers if believed that the offer has been abused and/or where the terms of the offer are not fulfilled, or any irregular betting patterns are found including collusion, and this decision is final.
2- The rules are clearly stated in the footer of the Sportsbet website
3- By signing up to the Sportbet website, all users are confirming they agree to and will abide by the ToS that are clearly stated beforehand therefore all users are aware of which type of contract they are getting in to before they are signing up
4- The most important of these rules is 12.1.8 because it clearly states Sportbet have the right to effectively withhold any winnings or bonuses if they believe they have reason: "We reserve the right to withhold any Bonus, associated winnings whether from cash or bonus wagers if believed that the offer has been abused and/or where the terms of the offer are not fulfilled, or any irregular betting patterns are found including collusion, and this decision is final."
5- Sportsbet ToS do not state that in the event of them implementing clause 12.1.8 they are under any obligation to justify their findings to the suspected fraudster or to a third party such as various members of this forum. Sportsbet are also bound by European data protection laws as stated in their ToS (5.1 and 5.3):
5. CONFIDENTIALITY
5.1 We will take reasonable and appropriate measures to ensure that Your personal information as disclosed to Us shall remain confidential. We will not disclose Your personal data or betting information unless required to do so by any applicable laws and regulations, court order, the relevant gaming and law enforcement authorities or other than as set forth in these Terms and Conditions. It is also Your responsibility to keep Your personal information confidential.
5.3 We will process Your personal data in accordance with Data Protection Act 2018, General Data Protection Regulation (GDPR) 2018, other relevant legislation and regulation and Our Privacy Policy.
6- The OP has claimed he is innocent
From what is seems on the surface the OP is saying that he is ready to comply with KYC and senf
In my opinion the bottom line in this situation is this:
Sportsbet concluded beyond reasonable doubt the OP conducted in activity that breached their ToS and they are under no obligation to explain to anybody why they came to that conclusion. They also stated it was not as simple as it being based on multiple accounts from the same IP address. Furthermore they went on to state they will not state what their security protocols are as they will give an obvious advantage to those that try to defraud them.
All existing Sportsbet users and all future new sign ups have to accept their accounts could be frozen at any point without a fully explained justification and they could lose all their winnings but will probably get back their initial deposited funds providing they have not been spent. The OP has protested his innocence but that has not stopped Sportsbet from coming to the same conclusion that their ToS were breached.
In a nutshell in conclusion:
There is no evidence Sportsbet selective scammed the OP
...but...
There is no evidence the OP had multiple accounts because nothing has been presented to this thread from either party that shows they have a valid case.
The OP has created two flags created against Sportsbet on the basis of: "neymarjr12 alleges: sportsbet.io violated a written contract, resulting in damages, in the specific act referenced here. sportsbet.io did not make the victims of this act roughly whole, AND it is not the case that all of the victims forgave the act. It is not grossly inaccurate to say that the act occurred around June 2020. No previously-created flag covers this same act, unless the flag was created with inaccurate data preventing its acceptance."
If the ToS clearly state Sportsbet can behave as judge, jury and executioner then the flags created by the OP are invalid and inappropriate because Sportsbet behaved in accordance with their ToS. The OP has no legitimate claim to create a flag on the basis of violating a written contract because according to Sportsbet he breached their ToS.
Regarding the second flag, it was created by efialtis against Sportsbet on the basis of: "efialtis alleges: Due largely to the factors mentioned in this topic, I believe that anyone dealing with sportsbet.io is at a high risk of losing money, and guests would be well-advised to avoid doing so. This determination is based on concrete red flags which any knowledgeable & reasonable forum user should agree with, and it is not based on the user's opinions."
From what I have read in the thread, the second flag has more merit than the ones the OP created because it is opinion based. I can only say that if users believe with those ToS anybody is at high risk of losing money with Sportsbet then they are right from their perspective. Most crypto exchanges and as well as most betting websites have similar ToS which could be exploited by unscrupulous website operators or only be used in exceptional circumstances where they feel fraud has taken place. Those are subjective views.
In this case, based purely on the evidence available I cannot support the flags by the OP because in my opinion a written contract was not violated by Sportsbet.
Also I cannot support the second flag because in my opinion users are not at a high risk of losing money at Sportsbet.
Having said all this, there are two main points of concern for me that Sportsbet and other betting websites implement on a wide scale:
1- I do not know why Sportsbet asked for KYC when they knew it would definitely not be enough. Even if the KYC is valid and even if they have a video call to ascertain identity of the user but he is linked with multiple accounts and breach of ToS then why would they ask for KYC?
2- Why do all these issues of multiple accounts come up after a user wins an amount or tries to withdraw - Sportsbet and other websites should have algorithms that start freezing accounts as soon as multiple accounts and breaches are detected because it means as long as users in breach of the ToS are depositing crypto and spending it losing on bets it remains a non-issue but as soon as a win or withdrawal takes place it triggers a breach of ToS