Billing issues

Pathetic service and horrible experience, they double bill me all the time, when I call their customer service line they say I don't have a contract with them, I took it from telkom direct old mutual last year Feb, however they deduct every single month without fail, they don't even upload their number on Google because everytime you call them either drop the call, no answer or answer and hang up, Telkom is a **** they charge me R200 for their mistake not deducting on time, we agreed that debit date will be on the last day of the month however up until the 1st there are no deductions and there's enough available balance, if I didn't check my statement I wouldn't have known so please I'm warning you do not make any business with them, also made a complain last year Feb till today no response from them