Totalcare is/was only available in north america - it adds telephone support and advanced replacement tothe standard warranty and I think IC2 subscription.
Like Totalcare Smartcare allows for defective device replacement - this is advanced replacement if a device is Dead On Arrival otherwise return to base. It also includes IC2 subscription.
Primecare is brand new and includes IC2 subscription, enhanced fusionhub licensing and hardware warranty but is only available on specific PrimeCare devices (Just the Transit Mini and MAX Transit currently).
The faster ways to work on this is to contact Peplink local partner base on your country and they should able to advice you the best method to work on this.