iI have tried 3 times to purchase pre sell of Xanathar's guide. Each time I am brought back to the same screen to select payment option. I assure you I have done nothing wrong on my end. My card is good, I have selected everything correctly and this is the 5th purchase I have made so I am not new to the market place. Need help before the pre sell bonus is gone. (Need someone who works for DnD Beyond to reply. Please no advice from another subscriber unless you had same problem and found out what was wrong.) thanks!