I am not sure who all accepts PayPal. But, while I hate criticising anyone, I have to warn you. Do not use RegisterFly for backorders! They will never catch a name that any other backorder service is trying for, or even those human's are trying to the day it drops. And they rarely even catch those that aren't so "wanted" domains. I've had many back-orders with them in the past. And, alot of the time, the domain would not even be grabbed by anyone, yet they didn't get it for me either. The domain would actually be still listed in my back-order account with some status saying they couldn't read the actual status of the domain. Yet, for days the domain would be actually unregged and grabable at any register, while it still "set" in my backorder account. Total waste of money :imho: