Bad service

I received a sms from Debt in Telkom today with reference no. TFLTN7959.I presumed it is in connection with a Telkom account, Pre-sure Insurance Brokers. I’ve requested them several times to credit this account for fees charged for a line not working. This line was for many years with Neotel and in May 2019 Telkom was requested to transfer the line from Neotel to Telkom on my wife’s name. I’ve visited Telkom office in Menlyn several times to inform them that the line is not working. On the 22nd November 2019 I visited them again in connection with the above. This line was only workable for the 1st time early December 2019. On the 30th December 2019 I visited them again and request them to credit the account and to transfer it to my wife’s name. End of March 2020, I received a call from Telkom and they discussed this account with me. I explained the situation to the gentleman on the phone. He said not to worry and he will follow it up with them. Now out of the blue, I received this sms. Last year we had 2 Telkom lines and Telkom wireless and out of frustration we cancelled one of the Telkom lines (a line which also did not work for months) as well as Telkom wireless. The line in question is working now and was eventually transferred to my wife’s name.