You can determine which payment methods you wish to accept for a certain designation. To do so click on the Designations tab at the top, then you can search for your designations using the Quick Search box and/or simply click to highlight your designation, and click on Edit.
On the next page, click on Accepted Donation Methods from the left-hand side menu. Then check the payment methods you wish to be valid for that designation. Click save at the bottom of the page.
You will receive a message that your designation was successfully updated and see the accepted payment methods in the table next to your designation.