Horrid client service. Worst service provider ever

So I've been with Vox for almost 2 years A week ago I asked them to allow me to leave by 1 November because their service is terrible. I have a 50mbps line but get 5.60mbps connection and pay over R700pm

Jerome (the manager) then calls and sends a technician out and says oh he will bring a different micotik box because it's faulty.

A technician comes and says he is not doing anything. This isn't his problem. He only guarantees internet if it's with a lan cable.

Today a week later I WhatsApp in. They do a software upgrade and they ******* the box. Now no internet. Again.

Manager Carl Winn Calls. I've never had an agent sound so disgusted to me talking to a client in my life. Tells me it's my fault for calling in. That's why they upgraded it and it *******ed. I should have had a back up router cause he has one. Also need to use my mobile data to get a reference as he refuses to give one. Then has the nerve to hang up

If this is your service, okay. But please release my line. Refund me my month subscription And allow me to move on from y'all. This is horrid that I'm begging for service all the time!!