Let's talk with Jim-san. Part18

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745
Regarding the issue of >>743, some information has been provided so it will be reposted after being translated to English.

http://uni.2ch.net/test/read.cgi/sato/1323543598/785
> There seems to be a problem with credit card payments on the 2ch viewer(maru) as credit card numbers that are not recognized on normal shopping sites are being accepted.
> As an example, a one-time debit number should only be allowed to be used once but one-time debit numbers that have been previously used are being accepted.
> N.T.Technology's payment site appears to have loopholes in its credit card verification system as on top of one-time debit numbers which have been used multiple times,
  there are other ways to generate fraudulent card numbers which are being accepted by the system.
> The issued ID can be used from the time when the ID is first issued till it is established that the payment has not gone through.

There may be other ways to obtain IDs fraudulently without payment, but would it be possible to disallow the use of the viewer until payment has been verified and cleared?
Kindly investigate and provide a solution.