Telkom is a disgrace

Telkom has conveniently misplaced a payment made to them for a deposit on a residential telephone/ADSL line at their Greenstone branch via card machine and cannot trace it anywhere after the payment was done. PAyment made Middle April, and was supposed to wait between 7 and ten working days for installation, eventually this gets escalated and escalated again and again and again, as nobody can trace this payment. Then I am asked for proof via my bank statement. Now 1 1/2 months later they say they will refund me and I must reapply and repay the deposit. What a bunch of ******s do they have working for them. This is absolutely ridiculous and unacceptable