When I bought a GoT Premium, there was a CC upcharge (essentially a split of the fee, which made it worth it for me to have the extra security). Then about 9 months later, I bought a GB premium right around the time the price hikes went into place. I was told there was no cc upcharge, so it made sense to use my CC.
Not sure if my distributor makes/wants that public, so feel free to PM me... could be he waived the fee as a loyalty kind of thing, could be because of the price hikes, I'm not sure but wasn't going to question it.