Edited May 3, 2021
at 01:20 PM
Grubhub has a Mother's day offer to buy $50 in Grubhub gift cards and you'll get a bonus $10 Grubhub gift card free.
I sent a digital $50 card to myself, received both it and the bonus $10 GC in my email almost immediately. Added both to my account. No problems at all.