I did an iPhone BYOD with number port in on July 18, 2018. I received my $150 gift card in the mail today, October 27, 2018 - three months and nine days later, as promissed.
Thank you Xfinity Mobile.
Thanks Indeed! I got my gift cards as well. It was late (but within the 16-18 weeks duration) but got it eventually. Thank You from my end!
Glad you all got your prepaid cards, please reach back out if you need assistance in the future.