Poor Service

I was sent money via the instant money transfer on the 27th of March 2015, I went to widraw the money at the Nelspruit CBD ATMs ,the ATM said technical error after I had put the pin and voucher number, I moved to the next ATM it said the voucher has already been used, then on the 30th I went to the bank at Nelspruit CBD at the enquiries, I gave them all the details, they told me I will receive an SMS in two days, I never got that sms till today, and I have been to the bank 3 times to query and on 16th of April they gave me a number for the 'instant money' when I got to the office I called the number and it's not going through.