Voucher app concept - Onboarding

Hello fellow designers!

So, I've been working on this app concept for the last couple of months. The idea is this: Users buy vouchers for their local businesses. The vouchers are prepaid = improved cashflow and greater predictability for the business, which in exchange gives an added bonus to the customer. For instance a $220 voucher for $200.

I've tried to present the concept and some key terminology in the onboarding. Would love your feedback :-)

All the best,
CJ