I need loan $200 my collateral platinum 1 stake.com account
You can easily claim back the account later by providing them ID proofs and claiming your account got hacked.
I guess this account is not easy to sell. The purpose of the collateral is that the lender can liquidate the debt at any time, which is not possible here.
Even if everything true what OP says $140 monthly, loan repaid is only possible in two months. during that time everything can change, for example, a casino can reduce the amount or stop these bonuses. So, the lender can stay with a 100% worthless casino account.