Well, I tried those sites but, they all require a bank account or credit card etc which, I really don't feel like giving them full access to.
Is there any site that doesn't require that?
What do you mean giving them full access? no one should ask you for every details and pin codes of your bank/credit card account.
The way you want it to be you have only one option which is to sell for cash but if you trying to deal online you gotta give them something.