c) You may have to prove your contract. Please make sure that you got proper documentation ready. However, if you hold a contract through one of the platforms, there may be a consolidated method which doesn't require proof.
And on a more serious note - what do you mean by ''You may have to prove your contract''? How can we prove our contract more than we proved it when transferring from hashie by showing that we have access to the same email that we registered on the platform or to provide some screenshots from havelock? Or are you talking about the case where we take legal action?