Still waiting for contract cancellation

I called Vodacom 2 weeks ago to cancel a data contract that I cancelled in 2017 that is still active. Along with a 2nd data contract that I opened. I was told that my numbers are old and not visible on the new system, and they would call me back last week Monday for the cancellation. Still waiting. A few months ago I called to complain about the usage of my top up contract and after I started requesting itemized billing my airtime lasts past the 8th of every month. Lol. The lack of integrity is shocking and highly disappointing. I am porting my number the first chance I get.