Is it true that some SSN have restrictions regarding credit cards and what are they?

The question is rather vague, however, if the issue is, does one have to give their SSN when applying for a credit, the answer is no. There are certain agencies which can legally enforce the request for a person's SSN or ITIN or information, the IRS for example. On the other side, the lender or card issuer does not have to extend credit to a person who chooses not to submit their SSN.