Inapp billing, register, login

Hello, we have maked a app with inapp products, the way to buy is from me 1. register 2. buy 3. buy is saved over ouer server, but apple whrite this is possible witout a register, but Where is the buy saved...

the last message from apple:

Thanks for your time on the phone today.

As we discussed, your app has been rejected for the App Store Review Guideline detailed below.

Legal - 5.1.1


We noticed that your app requires users to register with personal information...

Inapp billing, register, login

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