still no delivery

I got asked for my bank details a week ago for my money to be deposited in my account to buy the phone...I done as I was told I emailed you my bank details but still you not attending to me. I phone in on a daily bases but get the same story that someone is gonna phone me back within 24 hours. I dunno what to do anymore. am I gonna pay another month for a phone that I don't have ? you phoned me and promised that you will help me. this is ****** poor service im very disappointed in mtn.you failed me once again. am I gonna wait another 3 months for my money? is that how you treat us? ***