no help for the innocent

on the 26th of june 2015 , i sent my daughter to pay my light bill , she paid an amount R1000 and while doing so as the slip was coming out the till went off but the cashier said that it went thru and i recieved an sms saying that the amount was withdrawn from my acc , with that my daugter had to go to another till to pay a further R800 , THEN on the 2 july 2015 my light were cut , i then called municipality to find out why they cut my lights and they said my account hasnt been paid , we must sort it out with pick n pay , so we went to the store to query what is happening and spoke to a guy by the name of shane who in turn told us that we must go for a bank statement because there is nothing he can do , we need proof that pick n pay has the money ,maybe then they can see how to proceed , so we went to the bank and they were a huge help , we then went to martin west to see if they could assit us and they said they see it was paid an they made a mistake we must go back to pick n pay tho cause they dont see were this money went to , because of this mistake between the 2 places today im still sitting with out lights an im angry as hell!! how is any of this my fault