(In case it hasn't been brought up, there are multiple payment portals for different methods of payment. Probiller is for credit cards, Epoch manages Paypal, and I'm not sure of the other payment types as they are unavailable to me. If you and your friends are using differing payment methods, it shouldn't cause any conflicts but if they still happen, then there is probably in fact a Nutaku ToS clause regarding multiple users that we're missing somewhere)

I saw the picture...and peeked at Probiller's (not Nutaku's) Terms and Conditions. From that, I've gotten a bit more insight on the likely situation.

Sharing of accounts is probably considered acceptable from the Nutaku side, but there's likely a programmed recognition of ownership built in based on anyone who makes purchases...might operate under the assumption that if you make a purchase, you're the account owner. There are likely more rules built into that note but if you happen to have your own account that you're using a payment method for and then you happen to use that exact same method to make a purchase on someone else's account, it'll get the impression you have multiple accounts, which is a direct ToS violation for both Nutaku and Probiller.

Also, there's a clause directed at subscribers in the ToS specified to Probiller that basically says sharing of the payment system itself is outright forbidden and subject to fraud review. Under that note, it just means while multiple individuals can use a single Nutaku account, you have to be extra careful about the payment portals, as they have very strict rules since they're managing money (sharing a payment portal is the legal equivalent to sharing a bank account, after all).

In short, I'm revising my inference to:

1. Possible recognition of a single payment method (credit card #) having more than one account on the Nutaku site, ToS violation, and ban (though this would ban BOTH accounts simultaneously).

2. Use of multiple payment methods from unrelated individuals to the same account, suspected:
-2a. fraudulent charge (a credit card was stolen), account locked and money will be refunded once a party has contacted Probiller to report fraudulent charges.
-2b. multiple subscribers on the same account, direct ToC violation, lockdown and notification to Nutaku, resulting in ban.

My money's on 2 (which 2, I have no idea. I'm missing information on this end). Frankly the only thing I've gotten out of this is that Nutaku allows account sharing, but Probiller strongly restricts having more than one person using a subscriber account. You can't have your friends making purchases via Probiller unless only one person makes purchases from then on.

For now, I'd say try to get Probiller to get a hold of the account for starters (sounds like your payment method wasn't recognized as a valid account so you're gonna have to get all your friends to try to run their credit cards until a hit shows up) and more or less convince Probiller that there's no fraud, the payments are valid, and you want them to allow the use of all the recorded credit cards (and more of them if you plan on keeping this up). Honestly, the whole making purchases under different people sounds like the reason everything went awry so if you plan to keep that up, this will likely happen again and/or both Probiller and Nutaku will decide your case is way too big a pain in the ass to work on.

You think we're going too deep into this? On the contrary, I think you're only scratching at the surface and that's why you may not see the big picture. Some of us here have run into similar parts of the issues you are facing and have a bit of wisdom on that end. You waving both them and us off and blatantly placing the fault on others only lengthens the problem at hand and if your patterns of speech (text) are any way similar to what you're saying to us when you try to communicate with them, you're very likely to be aggravating them, which would make anyone trying to help you much less motivated to do so.

*sigh* since the beginning of my gaming career, I've never at any point allowed anyone else to make purchases on my account. I had considered it an unspoken rule that something like that was forbidden, though I didn't actually know the reasons why. Looking at this though, it finally makes sense, and for that I'm glad I never tried that road when I was younger and ignorant of the fraud paranoia that payment portals face daily.