I can not seem to find a method for linking cards to a single credit pool. This is something that I know Happylab Berlin implemented and I am trying to do something similar. The idea is that 1 member is the main member and has a package that provides them with, for instance, 1500 credits. Then they order a second card for their partner. This card has its own ID and the user needs to attend their own trainings before using the equipment, but it draws from the same pool of 1500 credits as the main member card. Happylab implemented this second card at 50%, but we would like to offer secondary cards at a set 10€ fee per additional card. Is there something that I am missing?
In the simplest arrangement, the main member would be charged for both cards, and they can work that out amongst themselves, but a secondary possibility would be to split the invoice evenly for each member in that account, but I imagine this would be a manual billing process.