Mweb service levels and Fibre quality dropped past recognition. Choose any other ISP!

Why can I not give less than 1 star? I recently signed up for Mweb Fibre on a 10Mbps line. It took them almost 3 weeks to connect my account. I then upgraded my account from the 10Mbps line to a 50Mbps line. When I made the call to upgrade I was told it would take 24 - 48 hours for the line speed to be increased, 72 hours later I phoned again and was told it will take 7 - 10 working days to upgrade the line. That was 32 WORKING DAYS ago and I only got upgraded yesterday. Accepted the change on my line so late and did a speed test (speedtest.net AND speedtest.jhb.mweb.co.za) to my surprise I'm still sitting on a 10/11Mbps line. I am not throttled according to my account usage on your website and I restarted the ONT box and my router 3 times already since yesterday. I phoned your technical department this morning and was told I am 27th in line, 26th, 20th, 19th, 10th, 7th, 3rd, and then the call was hung up after waiting for more than 30 minutes!!! I am now paying a 50Mbps line's price for the same 10Mbps line! I have never had such bad service or a ISP ever!

Can anyone else please recommend an ISP? I am looking at cancelling my account as an early Christmas gift to my own sanity and blood pressure.