TELKOM SUCKS

so i have a contract with Telkom-i was short with about R10 in my account-std bank charged me R145 for unsuccesful dedit-the next month cos my debit with telkom is R249-the next month telkom tries to debit R707 my gosh,again unsucceful cos i ddnt sight up-i phone them they say yes that the policy -the 3rd moth they try to debit R1158-I DDNT GET ANY AIRTIME-I DDNT GET DATA I GOT NOTHING YET THEY JUST TRY TO DEDUCT 3 TIMES AND THE BANK CHARGED ME 3 TIMES R145 this is ridiclous-my account is currently off due to non payment-i refuse to pay this who do i contact-i got my contract online never signed for all those fees