join T-mobile and get $150 gift card for each new line

join T-mobile and get $150 gift card per line of service.
Just received a email from redbox about joining t-mobile and get $150 for each line on top of all t-mobile promotion.
All you have to do is call 833-236-1769
And use promo REDBOX1
There was no additional info in the email but should be the same like the last 1 they did.
You can check the link below for more info
The gift card can take 8-12 weeks or maybe more, if you cancel line they will reject the gift card deal.
https://www.redbox.com/deals#