SomeoneElse
Hi,
Rather than just adding a note, you're probably best placed to make the change yourself.  You won't be able to do that from MAPS.ME though - you'll need to go to http://www.openstreetmap.org in a PC web browser and change it.  If it's still obviously a pub but not open, then perhaps "disused:amenity=pub" would work; if it's now a convenience store change it to "shop=convenience".
Any questions please don't hesitate to ask!
Best Regards,
Andy
