Horrible fibre ISP

Worst experience with an ISP ever, fibre support keeps you in an endless loop of troubleshooting and repeating the same steps over and over and over. I requested an early release for my fibre line due to service failure and I get ghosted and asked afterwards to do the same steps again and again, I'm basically paying for no internet during the cancelation notice period, whereas if they allowed to just accept the early release, because of their service failure, I could have switched to a different ISP, since I'm still going to pay the notice period in any case.