I'm a Massage Therapist and I've created some bundled offers for my clients under "pre-paid plans".
Now, once a client has purchased a 5-for-3 plan, I need a function that keeps track of the clients usage of the offer.
It could be a pop-up, the greets the client/member once they have logged in with a
"Hi X, you have 3 treatments left on your pre-paid plan. Would you like to book now"
How do I impliment that?