I assume you are using 100Mbps? Isat has the 100Mbps line only for R599 and 200Mbps for R829. Although I have only recently started using it on my Openserve fibre line it's been available for ages. Shared it with someone that has a fibre line for a while so yeah I doubt they will stop it unless they specifically start blocking B numbers for connecting to it which is very unlikely.
IF that happens you just get a capped account from Axxess, Cybersmart or as a last resort Afrihost or Openweb. You will still be saving lots of money and they all have uncapped between midnight and 6am except for Cybersmart that only offers 1TB of afterhours data.
https://www.isat.co.za/products/openserve-fibre-line-rental.aspx
Yes, I am on 100Mbps. I also quickly checked out Isat now and they are really cheap.
Do you perhaps know what the R1438 setup fee consists of for Vox?
I already paid that upfront. If I move my line rental over to Isat will I then have to pay some sort of setup fee again with Isat or not?
I am quite new to this fibre thing unfortunately.