IAPs gets blocked- possible STR

Hello,
My bug may be related with these "sold out" issues.

When I was trying to buy IAP with 1200 gems I was forced to validate my itunes password and after that I was forced to validate/confirm my payment methond. I was moved to account settings and enter cvv code of my credit cards. I fill that and press done button. After that, I get pop-up that my payment methond was declined. When I returned to the game I saw "sold out" info below every iap.

NOTE: I am able to perform IAP in other games. I made that just after problems with Plunder Pirates. After confirming my cvv, payment was done correctly.
NOTE#2: After reinstalling the game, "sold out" disappeared. Trying to buy IAP again cause the same problem, payment was declined and "sold out" re-appeared.

Reproduction rate: 3/3

If you have any question, please ask.

Best

 

Hello again, I think I know what makes this issue to happen.

When pop-up that asks me to validate my payments method appears, in-game pop-up also appears. This pop-up says that my purchase was canceled. When i moved to itunes and validate my payment methond, another pop-up appears: do you still want to buy gems for 8.99 (or something similar). So when i tap ok, payment is declined because game already canceled my request (and then sold out issue appears). If i dont tap ok and close this pop-up i can return to the game and do another run with buying but itunes second time asks me to validate purchase.

Expected result: game should not cancel buy request when popup about validating payment methond appears. (This system occurs in other games)

Please respond and let me know if any moderator read this

Issue was tested with one itunes account.
Device tested: iphone 4s 7.1.2, ipad mini retina 7.1.2
Gc account: agrest_gosu