Reply To: Mandarin Oriental – Spend £500 or more, get £100 back every time

[Rob]

ATP wrote:

Absolutely fine. Did this at MO London – me and friend split bill over 3 cards no qualms. Also done at the Connaught twice and was fine. I suspect if the bill is c.5k and you used 10 cards they may be less inclined but IME a few cards is fine.

Difference here is that the poster will be using the SAME card three times – although should still be OK UNLESS some security thing is flipped. Might be better to make each transaction for a slightly different amount in case Amex thinks one is a duplicate.