Right, you abuse GCU, they can terminate your usage of it. Not my complaint in this cluster of a thread. Where does it say they can do the rest the OP said they did? Hint: NOWHERE, based off this piece of the ToS.
Read the fine print
Gaming Total Assurance
M. Cancellation. There are no fees to cancel this Plan. This Plan will be cancelled by us for fraud, material misrepresentation, unsafe work environment/conditions as determined by us or nonpayment of the monthly Plan fee if you have purchased a monthly bill Plan.
Resellers are excluded from the program and from receiving points. If we mistakenly issue points for resale purchases, we reserve the right to deduct those improperly awarded points and/or to invalidate improperly issued reward certificates as well as to terminate such accounts.
If you are found, in our sole discretion, to be a reseller, your account may be terminated in accordance with Section 7 below.
You may cancel your membership in the Program at any time by e-mail or phone (1-888-BEST BUY).
If your membership is canceled (either by you or by Best Buy), you will forfeit any remaining points.
If your account has a negative points balance, we may immediately cancel or reverse any or all outstanding points as well as issued reward certificates.
We may not issue you any reward certificate(s) if we terminate your account because of conduct that we determine, in our discretion, violates these Terms or any applicable law, involves fraud or misuse of Program membership, or is harmful to our interests or another customer. We also reserve the right to deny future membership if we deem your conduct to violate these Terms.
Our failure to insist upon or enforce your strict compliance with these Terms will not constitute a waiver of any of our rights.