Thieving assholes of telkom

I have been trying to cancel a service at Telkom for a wifi router that I sent back with the courier last December, the assholes and ****sters are still trying to bill me for it, last Friday the ****ers tried to ***** R622 from my account and I had just paid 423 to the thieving ****ers at nudebt on the Thursday which was the 2nd of June, then a I noticed a bit later that day, the telkom ****ers tried to take out R373 from my account and that was cancelled too, they send you a form to cancel it and they expect you to send it back to them and as I don't have a printer and only work on a tablet, I sent a copy of my id and the confirmation of payment for R423 that I paid to them, the writing on that form was so tiny you could hardly see it, when I tried to save it after filling it on line, you can't save it either, I give up, so I have blocked telkom on my bank site and on my email app and they can get knotted. I am so sick to death of these assholes from telkom or hellkom. I am done now