Number change not happening

I recently took out a contract with telkom and from day one they I had trouble changing my existing number to my contract number. I first had to port from my previous service provider to telkom. Eventually after doing so my number was ported but to a prepaid sim and not my contract sim. I then had to do a number change which I was told would take a day or two. This has been such an inconvenience as I can’t use the benifits from the contract I took out because I am still on prepaid and constantly have to recharge my account with airtime and data. The reason for me taking out the contract was not for me to use a prepaid sim and constantly recharging with airtime and data.