said by MadCow :
Typical contract terms abuse... Taken to its limit section 18 means they could reduce you maximum usage to 0GB/month and you'd still be contractually obligated to pay them. When a contractual clause overreaches what it can reasonably demand, then it gets totally invalidated in the eyes of the law.
This is class action material if ever I saw it. It's an abuse of the entire process and the "Raison D'etre" of the CCTS.