Telkom billing issue

One star is one too many.... Firstly Telkom sold us new Hauwei phones and didn't tell us about the fact that there is no more Google play on them. We were told that we had 7 days to bring it back. Which we did on day 3. Spent an entire day at the Midlands Mall Telkom store to finally receive new Samsung phones after handing in the Hauwei phones. We then had to have interim numbers due to some 'back office issue' . This took about 2/3 weeks to get our normal numbers ported. We then received a bill for R11000 which was for the Hauwei devices that we had returned . We then phoned the call centre to query the bill and was told it was error and was rectified and we wouldn't be billed. At the end of the month R11000 came off my account. We have since been in contact with the call centre as well as Mesuli Ntuli who is the branch as well as Zama Khumalo who both assisted us initially at the store. It has now been 4 months with no resolution and telkom still having our money. Please can someone else assist us.