Pathetic *********** Service

I am very disappointed and livid by the manner in which my query with the accounts department has been handled I made an electronic transfer on the 1st April after which I realised I omitted the last two numbers of my account number I then phoned the customer service and I was advised to send proof of payment which I did its now the second week and no monies have been allocated to my account I have started getting sms's from collections which I'm being charged for to top it all this will reflect badly on my credit record plus I cant even make a purchase to make matters worse when I call that department the people that work there are rude and useless they will not give the required assistance I am very disgusted and upset I don't understand how can something so simple take so long while I suffer even though I made sure I paid it really upsets me I going to close that stupid account because it does not benefit me in any way instead it will end up ruining my credit record and costing me money in the process.