Afrihost's current policy is simple:
After you have moved 30GB you will be moved into a different category whereby certain ports will be shaped more aggressively. However, web and e-mail will still be prioritised.
After moving a total of 60GB you will be moved into a different category where your line speed is throttled to 1024kbps per second and certain shaping protocols are in place
After moving a total of 90GB then you will be moved into a category where you will be throttled to 512kbps. Certain shaping protocols will also be in place here.
After moving a total of 120GB you will be moved into a category where your line will be throttled to 386kbps. Certain shaping protocols will also be in place here.
After moving a total of 150GB you will be moved into a category where you are throttled to 128kbps.