Can a user have more than one payment card on his account ?

A user can have only one active payment card under his account. He can change the card on the app if needed.

General
How many devices can the main account holder have ?
Can I have the device without being a virgin SIM customer ?
Can I migrate the device under another account ?
What do I do if I change my mind and want to return the device ?
What is the Warranty for the device ?
Can I remove the SIM card in the device ?
What type of cards a user can have on the app ?
What is the Re-fund policy for the device ?
How do I know the battery status ?
Can the device call and recieve calls from other operators ?