Supersonic Worst Service in the world

My original issue was a year ago trying to get fibre that they took to long to install the fibre, then I cancelled and I struggled my @ss off to try and cancel because of their incompetence. Now I receive a clawback fee from them a year latter.

Support Call [SST032413], they will not get a cent from me. The worst service ever. I almost felt like having a stroke because of them. I will sue them if they try and list me for this stupid clawback invoice.