PROBLEM AFTER PROBLEM WITH TELKOM SINCE DAY DAY ON

I'm still having billing issues with Telkom. I should be in credit but now it says I'm in arrears with another huge bill (with TWO phone numbers on it - we only have one line). This is ridiculous... Not to mention that we have not had service for a week and a half! What does what have to do... Who do you speak to for things to actually get sorted out. I'm frustrated beyond my wits end. Telkom store... Call centre... Sms fault reporting- I've done it all and still no solution to show for it!