I feel like such a ********

I had a Telkom Mobile contract in 2015, which I requested the company to cancel. It then slipped my mind to settle the settlement fee. Unfortunately, I recently found out that they have gotten a judgement against me when i tried to buy a house. The most bizarre aspect of this whole drama is that, at no point between 2015 and December 2017 did I ever get a letter of demand (mind you they had been emailing their statements to my email address for almost a year). I made the payment for the outstanding amount and requested that I be sent a letter confirming that I had settled the amount and that they would lift the judgement against me. The payment was made on the 22 of December after which i was told by a rude call centre agent named Tshepiso that I would have to wait 10 business days before receiving such confirmation. The last day was on the 8th of January, and still no confirmation. I decided to call the 9th to follow up and was made to hold on the line for 11 minutes while the agent was waiting for her team lead, after 21 minutes I ran out of airtime and the call got disconnected. There's been no effort to call me back to help me sort out this matter, which has put a very important milestone on hold. I agree i was initially at fault, however, the treatment from Telkom Mobile's call centre has left me feeling what it is like to be considered a ******** and left a very bitter taste in my mouth. I have experienced bad service in this country of ours, but the don't care attitude I've had to endure has taken my expectations of service level at its all time low. Never again will I deal with Telkom Mobile, I've learnt a painful lesson.