i understand but by refusing escrow people start thinking i am a scammer ,
You are not refusing escrow but "the" escrow that was suggested cause you do not know them to trust that they will be honest through out the entire operation.
An escrow should be one that is known and trused by both parties.
True but when it comes for a voucher the person can use it and Reject the deal
as i recall escrow mainly work to provide the acc\vcoucher and person just need to check and accept the transaction , but in this case he can copy it and reject it ! and then i lose the voucher and to get back and cancel it will take dayss if not months