Lack of Service

I installed fiber in 2019. Since then the speed was slowing down. I phoned support and they told me my TV was old - I bought a new TV - didn't solve the problem. I had to connect the TV with an Ethernet cable to stop it hanging. Phoned support again and upgraded to 150/150 - no change at all. Phoned again and the lady told me to reconfigure my router. Still didn't help. Internet is so bad now that I lose signal all the time. I called for assistance at 15H15 on the 1st June and was cut off twice while waiting on the phone. I then contacted the WhatsApp number and was advised to "go get a cuppa" while I wait....and wait....close to 8pm a technician responds - 4 hours later. I had bought a new router after researching the problem myself and just needed assistance installing. Afetr the long wait, I had sent an email to say I was cancelling my contract (30 days notice) would be the end of June. No reply from the complaints department. Next day I contact accounts to verify that they received my cancellation - lady says, yes, she sees the email, but doesn't cancel the contract. She then asks if I want to be put through to premium service, since I had waited over 4 hours for assistance ?? Assuming my contract was cancelled, I contact and contract a new service provider. They contact me to say that Webafrica has not put the cancellation order in. Contact WebAfrica again - they now say I need to pay until the end of July plus a cancellation fee of R999. Daylight ******* considering that for years I have been paying for a speed and service which I have not received. I have wasted so much time and money on this company, and am very angry at the complete lack of service.