Refusal to unblock my phone and allow for a cancelation

I fell behind with my payments in February and caught up with my payments on the 24th March. Telkom had blocked my number by then, I visited the store at Maponya Mall in the 26 March to cancel and reopen my number. I was sent back by Tshimo saying that the funds were not reflecting yet. I returned on the 28th and Gontse advised me that I need to wait for 7days for the funds to reflect. I am currently at the same branch and Evans is assisting me saying that the funds are still not reflected. All this while I have been unable to use number. The service from Telkom collections and the branches is Appalling. I would like to cancel the contract and move it to prepaid.