If I understand correctly you use Stripe Issuing to give people cards that they can then spend with in a way that you control? How do people recharge their Justuseapp cards? You charge their real card and credit their virtual ones? And if one of the apps being used makes a unauthorised charge do you then raise a dispute on behalf of the customer? I'm not trying to apologise for Stripe, I'm trying to see what's specia…
I assume when you sign up to a free trail, they'll charge your card £0.00 to confirm it's a valid card, then when the trail ends and they try to automatically charge you for a full subscription they'll block the transaction.