Rules for redeeming points

So I'm trying to figure out the rules for redeeming points. Some include : 

-First gift card required a long verification process of about 10-20 days. I had to email them twice before I got my gift card.

-Afted that, all gift cards get redeemed instantly

-You need to verify your phone number every time you redeem a gift card. 

-You cannot redeem more than one giftcard in one go. 

-There needs to be a minimum period/time before you redeem about giftcard. Haven't figured that out yet. Any clues? 24 hours?

Any idea on the expiration date for the gift cards? I couldn't find anything in the cards themselves. 

Anything you'd like to add? I'll make edits based on the comments.