IHG Status Match Timescale
Anyone else looking for a status match, it's much better just to ring them. I rang their US service centre on +1-888-211-9874 at 10am UK time, did not have to wait in a queue, and had the status match done and showing on my online account in less than 5 minutes by emailing directly to the CSR I was talking to. Much better than the emails, which had no replies.