Telkom service sucks

I have mediocre supply of service from Telkom and their fibre internet is quite intermittent. During a very busy December holiday period which is my busiest time of year I unfortunately forgot to pay my account on time. I paid it a week later than I should. I have not received my January account yet and my service is suspended! The attitude of the staff member at Telkom leaves much to be desired, telling me that 'you should have paid your account on time if you don't want to be suspended"! As far as I'm concerned this is the very poorest customer service I have ever received!!