I would be interested too as I gave some advice to her last year
I saw your campaign, I think it's pretty hard to promote as there's ALOT of wallet campaigns around plus they have features that protect cards from readers and other connected technolofy.
The selling point is that it's a neat looking wallet, that can carry more cards than a normal wallet and looks durable enough. If you promote how lightweight, secure and small it is - then I think it would help.
Let me know if can help in any way.