Telkom billing is *****

Morning Telkom is giving me a hard time and no solutions about a payment i made on the 7th of March. I have tried to call but i am on the line for long periods of time. I used my name as a reference when making a payment but used the correct account number. Now they are telling me they are unable to trace it. How is that possible when their account number was used with my name as reference. Please can they call me back on the Telkom number i have to sort this out. An incorrect reference should not affect a payment when the account number is correct. The amount in question is R802.00.

Please help me resolve this. Kind regards