Yes, but if they give you a contract that says that you have to provide them with your birth name to use their service, then that part of the contract just doesn't count either way in those territories where it has no legal basis.
So in that situation, if you give an alias and you click agree to their contract, you would still not be in breach of contract.
They can always remove your account anyway of course.
So in that situation, if you give an alias and you click agree to their contract, you would still not be in breach of contract.
They can always remove your account anyway of course.