I received a check number to try out the service. After entering it on the website (in a Tor browser), the "Open" button wasn't clickable. After adding the cheque to the URL it worked, and I redeemed it.
The same problem with "Split": I can't click the button. While playing around with the Top Up feature, it also doesn't update the amount the way I would expect it to be. I haven't tested it outside Tor yet.

Some testing and comments:
Change Details > Change: works fine. I got a new cheque number.

When I click Withdraw, it shows my 5 USD is worth 305.15 Yandex RUB. When I change that to BTC, it shows me 305.15 BTC requires 2655325.35 USD. I suggest to adjust this to the BTC equivalent of 5 USD (the amount on the cheque)

Typo: When Withdrawing, it says "~ displayed amount is an estimate and can differ at the deposit time".
Typo: FAQ says a check has 32 digits, this should be 35.

I like anonymous payment methods, but that also means there's no possible way to prove I paid someone if there's ever a dispute afterwards.

Questions:
What happens if I close my browser before I copy the cheque number? I tested it (after copying the cheque number), and the balance was gone. Is that intentional, and if so, that's quite risky.
You allow very small withdrawals (0.02 mBTC with very low fee (0.01 mBTC). I like it, but it's basically Bitcoin dust that requires a higher transaction fee than it's worth to send. I've recently been playing around with a Lightning Network wallet, and tested some services that support it. Would it be possible to add LN support for small withdrawals or deposits?
The service seems to mainly focus on RUB as a currency, most of the world doesn't use that. More crypto options, especially the ones that can be used with low fees, would be a good improvement.

Well I don't understand what you are really trying to say and might not be able to help you, what do you mean by a bulletproof blockchain, is that that you are referring to a blockchain that can't be stopped or traced or you are referring to a blockchain that makes one impenetrable because that would be very weird, lol. Please it would be nice if you can break the English down a bit, so that I can understand what you are asking for.

Sir, AlexNeto sent me a 2$ cheque to test the website. I opened it (it was easy to use and user-friendly UI) and wrote the code. Then a new page opened with the cheque info, change the currency, withdraw the cheque...., it is simple to use the website, the option "split cheque" is very good as you can take a part of the cheque and keep the rest. When you make a withdraw order, the withdrawing process is very fast! And I like the android app you have. You can build apps with the API they provide.

And I have a question, Do you save a log for every cheque? If so, What do you save?

Edit: question 2: If I create a new cheque bought USD and use it before the date of expire, there will be no problem?

Thanks z-pay.io Team!

I like you service. I tried it and add some money. Even traders can fix their profits through you service!
You can add some more cryptos also, it will be nice.
Also I did not find affiliate (revenue share). Are you planning to open it?

Answer for feryjhie: what KYC are you talking about? This is anonymous project! 

as you can read the minimum rank is Hero/Legendary

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honestly, I've never used your service before but after i check it around in the website and its look awesome
as for the withdrawals fee which is the lowest in the crypto scene
and i have a few questions regarding the service
1. Will you ask the user to complete KYC if the cheque in high amount?
2. Regarding the withdrawal fee, is the fee will be permanently 0.00001 BTC/ 0.0001 ETH? or you will increase it later?

This is my cheque

Here is my review:
I recieved a cheque to try this service
The idea of this service is very useful, unique and helpful.
It acts like a real cheque online.

Things I liked:
. The variety of actions (currency exchange, the expire, the lock, edit the details...),
. The anonymity
. The way of withdrawing the cheque (like you can get the value of the cheque in BTC, ETH)
. The site works without registration
. The duration of converting the cheque to your crypto wallet
. The support
. The design of the website
. The telegram bot idea
. The Android app

that cheque link is no longer working

...

——————-

This is $10 cheque, password protected.
https://z-pay.io/auth/301566190988-62703589964604503922679
I will post the password in random time later in this thread. 😂