Bad service

Hi. Can someone please explain if a debit order is129 Telkom charges 400 for a debit order they do not collect on the stipulated date. The so called late charges are more than double the contract. They debit you your account is up to date. You have had no connection to the sim for 2 months they say account isn't in arrears but can't explain why it's not connected. I want to cancel my contract and they do not wat to allow it. They can never hear your calls. You are on hold for over 35 minutes. Get cut of and the entire process starts again. TELKOM SUX