Just a data point...
I received the IHG 350 / 70 offer that was valid "in-person only at the front desk of participating IHG locations". Booked a stay direct with IHG online that required a deposit and so my Amex card was charged immediately. That seems to have triggered the cash back even though it was an online booking and not an in-person charge.
Added to that I'm getting a 8% cash back from Shopback too! So overall pretty happy!
(Of course, the day after I booked, Qantas Hotels launched their 9x points on hotel bookings promotion... oh well at least I have the cash back!)
I received the IHG 350 / 70 offer that was valid "in-person only at the front desk of participating IHG locations". Booked a stay direct with IHG online that required a deposit and so my Amex card was charged immediately. That seems to have triggered the cash back even though it was an online booking and not an in-person charge.
Added to that I'm getting a 8% cash back from Shopback too! So overall pretty happy!
(Of course, the day after I booked, Qantas Hotels launched their 9x points on hotel bookings promotion... oh well at least I have the cash back!)