Cannot cancel contract and covert to prepaid!!

My contract expired on 2 June and I have been trying ever since to cancel the contract and convert to prepaid. I have been to no less than 4 stores and cannot get through on 808! Last week I managed to get Esther at Lakeside mall to log my request in the system. She would phone me back and never did. Today (another week later) I went back to Lakeside to find out if I have been converted to prepaid as requested and was told they cannot check on the ref number on the system because Esther isn't there. What a load of crock!!!! How can nobody assist?? I am extremely frustrated and annoyed. I want my number converted to prepaid with immediate effect and will not pay another cent towards this contract as a result of your incompetence!<br> Funny how you can assist customers with new contracts and take their money but cannot help your existing customers?! Your staff in store are also not eager to help! MtnLakeside needs to catch a wake up!!<br> ***<br> ***