This just in from Great Lakes Scrip:

It’s here: Conveniently pay with your credit card and earn Now, there’s another way to pay online—in addition to linking a bank account (PrestoPay™), you have the option to pay for gift cards with a credit card.

Important details about this new payment option

Credit card types
Visa and Mastercard are accepted.

Rebates
The rebate amount is the same any way you pay.

Purchases
A 2.6% fee is added to your order total each time you pay with a credit card. You will have instant access to eGift cards and reloads.