bad service and incopetent employees

i am livid with the service and the non feedback/ response from this store. I went for an upgrade of my existing contract and took up additional contract for data bundles on my prepaid number. this was two weeks agos. days past after I have provided them will all necessary information to proceed my contract, but the service I requested was not met. I visited the store to let them know ,only to be told about system issue blahblah, and that my account was a ***** dedicated account. why is it they fail to keep clients informed of any new developments regarding their accounts is still my biggest issue. days later Faith Muthiba calls me to confirm which bank I am using. (I am an existing client all my banking details should be updated as they have been debitingg for the past 2 years). days following that I get a call from Khanyi Marula wanting to confirm my mobile number(she called me on the same number#incompetence).due to frustration I then ask her why is she still calling to confirm details I have provided them with when I came to upgrade and take up a new contract. she is unable to answer instead she tells me she was "asked" by Faith to assist me (as though she is doing me a favour)since she is off. my follow up question is so when faith is on leave all her work is on a stand still until she is back? still she could not respond, instead she drops the call on me. she then calls back and when I am expressing my frustrations she says "okay sisi" and hangs up AGAIN. the attitude is disgusting and the level of competency is non existing. All this should have been dealt with the first day. Khanyi is rude and *********** does not know what is mean "customer service "DISGUSTED.