Thank you everyone for your replies. Patrik – is there a way to have someone select two payment features in the checkout process? And to force one to be mandatory when claiming or creating a listing? For instance, I could set up a separate charge item that is $20, that does not repeat, and that is a forced purchase option. Then I can set up the $18 monthly fee for standard listing and $49 monthly fee for premium listing, and it is a separate charge. Does that make sense?