I want to offer someone with a similar account as mine $$ for his twitter account since he rarely uses it, but I don't really know what the safest way to do it is. I'm guessing paypal but what stops him from not giving me the account after I pay? Am I more protected if I use my CC as the source of payment for paypal? I'd like to use billmelater because I just invested a bunch of money recently and don't have the cash at this exact moment.