I tried to pay in IOS app 2 times, but they are in keep status in history.

Please let us know the Order ID. It starts `M` in Purchase History.

I have no Order ID. The payment is under preserve status.

Will it help if I apply another account?

To check your transaction, we need your transaction ID provided by Apple.  Please check it again and let me know when you get a chance.  Thank you for your patience.

Apple just approved the purchase and double count... The number is MT4FD2Z81L. Now the credit become zero.

I think your issue is now solved.  :-) Please let me know again if it's still same.