Disgusting service from Telkom

Our business changed all our mobile, landlines, & internet services to Telkom in February 2019. We got notification on the 6th of March 2019 that all our services had been suspended due to non payment. We then try & contact Telkom on 10210, but apparently there is nothing they can do as "their system is down". I then go into the Telkom store at Mall of Africa, because we know we don't owe anything & no payment is over due, & this is effecting our business in these difficult times. The guy at the Telkom was very helpful, but again could apparently do nothing, but did confirm it was a Telkom problem & nothing to do with outstanding monies. I did get a copy of our latest invoice which clearly shows that no money is due until the 1`st of April 2019. This is really bad & unacceptable service & would like to know how I can bill Telkom for the lost business. If I could rate Telkom in the negative I certainly would, they just don't care & are a law on to themselves..... Very disappointed!!