Disappointed

Last night I tried to pay my wifi on my capitec app ,1 try showed error aswell as the 2nd try, left it till the morning only to discover 2x payment of R439 was deducted from my account.......Nevertheless I tried to contact WiFi network provider, only you be told the need proof of payment from my app in order to resolve the issues.Capitec cant provide me with proof of payment, they can only do this in 2-3business working days. ITS NOT SHOWING ON PAY MY BILLS HISTORY BUT SHOWING IT WAS DEDUCTED ON MY TRANSACTIONS ,THEY CANT PROVIDE A P.O.P ,WIFI PROVIDER CANT SEE THE PAYMENT HENCE WHY MY WIFI IS OFF .THIS IS TOTALLY UNACCEPTABLE MY MONEY IS SOMEWHERE OUT THERE AND NO ASSISTANCE FROM ANYONE REGARDING MY PROOF OF PAYMENT.......I CANT GET MY WIFI CONNECTED NOR CAN I GET A REFUND FOR THE OTHER R439 .....I HAVE BEEN BANKING WITH CAPITEC FOR OVER 10YRS AND THEY CANT GIVE A SIMPLE SERVICE .