Attend to this ASAP. I am really disgusted by SUPERSONIC SERVICE DELIVERY

I was in need of Fibre connection and I reached out to Supersonic. The device was delivered and they guy was not able to configure it and left. He did not follow up to check if the call he logged for my connection was it resolved. I wasted so much airtime calling them and contacting them via whatsapp. They have never called me to give me feedback of my ticket. Service level agreement is not adhred by the staff members. If a ticket has been assigned to you, it is your responsibility as an agent that is working on the ticket to give constant feedback until the call is resolved. I cannot explain how will I trust them , since I have know supersonic they have changed their whatsApp number three times withing 6 months. How will you trust them as customer. Finally after a month of back and forth emails with Ryan and Katlego the device was finally activated and working. Two days while using it I did forward Ryan my connection issues via whatsApp that it is failing me and he said he ask someone to look at it and give me a call. Days went by with no one coming to the party. I then ask Ryan to cancel my subscription with Supersonic so I can look for another service provider. I have asked him by email as well to action my request. He did not bother contacting instead after that I had received an invoiced dated in July where I was not using the internet connection at all. I moved to vodacom router was delivered and I have been using it not knowing that Ryan did not cancel my subscription. Did email cancellation and Ryan but looks like not even one department follow and deliver. They didnt end there, december I was sent emails with screenshot requiring me pay , you wont believe I was sent someone's else account with screenhot demanding I pay. To my supprise it was my neightbors billing which also POPI act was not followed. I now have visibility on how much they owe and it doesnt end there, I also have visibility to their personal information. Now you asked yourself that how many incorrect billing do they send to people. To my surprise last week I had no connection, it means it was never cancelled to start with. using a different router I was still connecting to them thinking im connecting to my new service provider. Can you imagine the level of disrespect theyt give customers. Three times trying to get hold of them via WhatsApp " our number hs changed" May you please release my line like i have been asking you to do so so I can move to the new ISP. This transition need to happen ASAP as this also affecting the line of work that I am doing. I can tell you I am doing support for the longest time, SLA is not adhered to here in supersonic. I dont know how they work but that is not how support has been done. You do realise that I am not the only customer that has issues, even my friend was given almost the same treatment I got just to get activated and use the line. PLEASE can you realise my line so i can move peaceful to another ISP like I have been saying. Today I have sent Ryan, Katlego and Divan email no one responded or called me. Please resolve this issue as a matter of urgency.... PLease I am really disgusted by your service.