no worries, in my experience US/Canada parts tend to start with 0000. I’ve had a few myself ordered via dealers or friends in the US.
They are on back order, as usual no idea when they will arrive ‘ they will arrive eventually’ you will have to pay in advance as they are ‘special order’, £50 ish.
Cheers
Steve
Sorry, that price is for a pair.
I got mine from MX-5 parts as a special order.
Well thats good , so you got the club discount then? they didnt recognise the part number when I asked 
D’oh….sorry, I just checked back through my records and it turns out that I bought them from my local dealer, I got confused with a special order for a convex passenger door mirror for my 30th from MX-5 Parts.
Sorry for any confusion. 