How do I transfer a DIGITAL Clipper card to apple wallet?

I don’t know how to transfer my digital clipper card to apple wallet. I’ve found instructions on how to add a physical clipper card but I don’t have one and I never have had one. I only have a digital clipper card. When I open the clipper card app it says that my card is “not on any device.” I don’t want to open up a new clipper card in my apple wallet because I still have money on the other one.