I don't keep accounts with the blood-sucking usurers but at managerzone I bought some power tokens because I could get them through ZONG. You give them you're mobile number and they send you a text message. You put in the code from the message and the credits are in your account. I have a prepaid cell phone, the amount is deducted from my balance and there is also zero chance of any of my personal information being compromised online = totally safe for both parties. If you had zong, I would probably buy a driver.
Did you just call me a blood-sucker???
Besides that though i'll +1 adding ZONG as a payment method for the same reasons you've got. It would allow more people (probably me for one), to pay for better clubs.