20,000 points = $300
17,000 points = $200
14,000 points = $150
There is a $50 and $100 tier as well but can't remember how many points you need.
It states you can add more than one code as long as they are different denominations. But note this is NOT currently true. Only one per order and you can't stack with codes lile SPRING25
Also codes.can't be used against plans if needed as part of the phone order and multiple phones can be added to the cart and the code will apply against all until used up.