Hi Firefish,
I had the same issue with MUPS. I want to pay my membership fee and sales fee, but without a cc or bank account I am unable to do so.
I run my own own panty site although being so new the biggest obstacle I face (besides snail mail payment options) is the lack of online feedback. I can advertise all I want but no one seems to want panties from the new girl on the block lol. So it has been very slow for me.
I still keep in touch with my potential buyers over email and yahoo chat. Most of them are very sweet and polite so I don’t mind. If I can’t get feedback on my panties at least I can feedback on my personality 😛 Just make sure to log conversations over IMs in case you pick up a bad egg.
If you already have feedback I think you may have better luck since I think you can always link them your feedback.
I hope that helped.
-Naenae