Hello Roger,

Thank you for your interest in our product.

We have a packages of services with them you can sell appointments in a bundle but we do not have a system where you can sell credits.

 Packages of Services is the only feature that is not included in the Basic license, the rest of the features are absolutely identical. 

Packages of Services is a feature that allows creating packages of multiple appointments (of the same or different services). In that case, the services that are included in the package and the number of appointments will be fixed, and the price will be set for the whole package. Customers will be able to book included Appointments on any days, with no strict recurrence. You can see more information here.

For example packages for gym packages. For example, you have "Gym access" service, "Treadmill" service, "Bike" service, "Spa" service, and so on. You can create a package that includes all these services for a reduced price. 

So, you create a "Full access" package, where all these services are included. You define the number of appointments per service, and allow your customers to book all these services in one go.

So, a customer can book this package, and book "Gym access" for 5 days (free for choosing), "Treadmill" for 3 days, "Bike" for 2 days, "Spa" for 7 days, and so on. You define the number of bookings for each service. 

Hope that helps