Telkom Power box blew - Billing all incorrect too

Recently telkom connected the jack in my dad's room with the new ADSL. The Telkom power box(jack) blew on Friday. I logged a call. Telkom technician named Musa went and replaced the jack. he confirmed that it was a fault on the telkom jack. When my dad asked him to take the ADSL unit and bring through a new one he insisted that my dad take it to a Telkom store advise them that he sent them and they will replace immediately no issues. What an embarrasment at the Gateway Umhlanga branch where the consultant insisted that they cannot assist and that its no fault of telkom and that we need to buy a new one!!!!. Telkom installed the ADSL and we must now run around. If thats the case remove the ADSL and refund my dad from the beginning. My previous Hello Peter complaint - a lady called to say a refund will be done and she gave the amount. I dont see it on the billing. Secondly the latest billing has duplicated charges which does not make sense at all!!!!