In the Offer tab, you will find the information about the customer's active offers.
Subscription offers information
Next billing date: The next date when the account will be billed
Previous billing date: The last date when the account was billed
First billing date: The first date when the account was billed
Next gross price: The monthly price of the subscription
Next net price: The monthly price of the subscription that the customer will actually pay (can be reduced by vouchers)
Day pass offers information
You can currently find the information about active day passes in the Entitlement tab.