Toki Mats review for PreOrder Now Backorder WOD

We've been using this app for two weeks and every single day we keep getting real orders that are supposed to be preorder. We've been working with the support team to try and figure out, and finally they told us they don't support orders paid with certain payment methods. This is something they should have told us before using their app!!!! We've lost thousands of dollars in canceled orders and it's been a customer service nightmare, I'm so upset