How long does the Amex gold GrubHub credit take to post? Used it for the first time last week and charge posted 5 days ago but no credit...
Double-checked that I was registered for the benefit and i was.
I've seen anywhere from 5 to 15 days for it to post.
As long as your charge posted before the 31st of that month you're fine, and of course you only used it once.