Postcode conundrum in Hebden Bridge

I was puzzled that the Old Gate in Hebden Bridge doesn't have a What?ub link. On investigation it seems that Camra has a different postcode to the one we have on PuG. Simple enough, just change the postcode.

However, on Royal Mail's postcode finder they have the same as we have: HX7 6EN. The pub's own website has the same as Camra: HX7 8JP. Google Maps has a similar map point for both postcodes (50 metres or so from the pub).

Simple solution: change the postcode to HX7 8JP ( to match Camra and the pub's own website). However, the purist in me wants to stay with Royal Mail's postcode finder. Can you fix a link to What?ub without making the postcode on our site match the postcode on theirs?

Just changing the postcode on PG wont necessarily help with the WP link, it would certainly make it easier to match but it isn't everything. I'd rather we have whatever is technically correct.

I've added the link for that particular page and it now is one of over 3000 where we have a different postcode to the one on WP.