I have four Google Play subscription types:
Standard Monthly - $5/month
Standard Annual - $50/year
Pro Monthly - $10/month
Pro Annual - $100/year
We are struggling with the following scenario:
A user pays for Standard Annual then quickly changes their subscription to Pro Monthly (e.g. they only use 1/10th of the standard annual entitlement).
Where does the value of the unused Standard Annual entitlement go?
We would like the unused value of the Standard Annual entitlement (e.g. $45) to be credited to their account and used for their Pro Monthly payment - is this possible?