I recently paid to enter the competition, but now I’m ready to submit images, and I’m being asked to pay again.
It’s very likely that you paid for a previous (now completed) competition. It’s extremely important that you take note of the type of competition in the headings displayed on the page before paying. We tried to make this very clear by displaying it in red in two places on the page, above the Pay Now button. A common occurrence is when the digital competition comes right after the end of the print competition for a triannual. See the image below — it now says “digital,” but could have said “print” when you paid:
