Tried to charge me R5k to stay a customer of theirs just because I was moving houses

I started up with mind that speed in March. I had to move due to covid, and wanted to migrate my services with them to my new place. I knew they'd need to charge me an installation fee as new equipment needed to be installed. They then proceed to ask me to pay a cancelation fee (which they made higher randomly after I told them I would no longer use their services), insisted I had hot given them notice (which I had) and said I had to pay for an extra month's wifi at mu old place, as well as the new. Then they stared saying if my router was not in the box (even though they were giving me a new one at the new place, why not just let me use the old one?) They would charge me a further R800. It was going to cost me over R5k to move and keep their services. So instead I'm going to a new provider. I have no idea why fees have randomly changed,or why no consideration for the fact that I'm trying to keep their service and stay a customer of their's was taken. Overall, internet speed and support is okay. But the way the handled my move made me not recommend them.