paid and my accounts closed

I was paying my account through debit until vodacom stopped debiting from my account so I started paying at the shop on june on the 9th I paid at the shop as usual the money was allocated to the wrong account and they suspend my lines I went back to the shop were I paid they phoned Vodacom and they asked the shop to email them the proof of payment and the shop did . and they keep on insisting that I didn t pay on the 1 of July I went back to the shop they phoned them they needed some other proof of that payment which was done again after 2 days my account was unlocked as I am sending this my account is closed again they still need proof of payment which they have got what kind of service is this guys you have to suffer because some one is not doing his / her job correctly I AM NOT USING MY PHONES I AM PAYING FOR WHY MY NUMBER *** MY ACCOUNT I***6 [ THE WRONG ACCOUNT WERE MY MONEY WAS ALLOCATED IS I*** l am very angry i wish I can cancel these contract