It's pretty common indeed but you need to keep doing your part in terms of reading the terms and condition to make sure you'll be able to maximize the uses of the gambling site you pick to play your game, with proper understanding of the requirements you will not be surprise if something is needed to implement since you do your part reading and understanding what is being said.
Accepting the requirements means that you are willing to follow whatever the house is implementing, for you to be able to transfer your money or for you to manage to take advantages of any offers that the house is offering.
Do you know that some persons does not to be an instruction of a particular gambling platform before they participate to that have already cause people things that they don't know or lead them into problems so it is good from my understanding to at least studied a particular platform that you want to partner with very well before you make your bet so that you will not have any difficulties during the withdrawal
Most times, its not about reading a pill load of terms and services before knowing what to do and I believe that op already know of what it take to make withdrawal from the very sportbook he was referring to but what op was worried about I guess was the high and unfair conditions associated with making withdrawals on those sportbook and though those regulations were typically to help prevent money laundering and criminality through the casino but I think it isn't fair for the relatively common man as moat times it seems impossible to make away with winnings from those casinos due to their wagering and withdrawal requirements.
- At that point there is nothing we can do in such a situation. That's why it's still important that we know what is really called toc that a casino platform has here.
Now, if we know the toc in advance, it is certain that there will not be many whining or complaining because you only have to follow their wagering limit just to be entitled to withdraw from their platform.