Afrihost - Below sub-standard service

I have had constant issues with Afrihost ever since the package with Cell C ended, and we were forced to change to either MTN or Telkom. So we moved over to MTN, and the router/sim card keeps jumping to a different tower so the signal keeps cutting. It happens randomly, mostly over a weekend and then there is no one available to assist so we are stuck without wifi for an entire weekend. I then try to contact the service centre, and end up waiting an hour for someone to assist - only to then AGAIN result in me having to take time off from work to make it through to their head office for them to sort out the same issue. The cost of the package also increases, without any warning and the debit order goes off for the new amount.