Im sorry to contradict.
We found out this morning how the system differentiates. It is now possible for IS resellers to change the service levels and speed for any of their clients 'on the fly'.
We have currently decided not to resell this product as we believe it should be the Tier 1 provider's responsibility to provide a best case service 24/7.
Therefore, we will continue to sell the IS Uncapped Basic shaped product which seems to be giving amazing results so far.