Missing section of UK

I have downloaded the generic routable map of the UK and half of the south east is missing completely.

I did make a post ( I can’t see yet) about the same problem with the UK generic routable NEW STYLE which is actually missing even more than the above.
Both images downloaded were .img ready to place on micro sd card

Anyone? any thoughts as to how to report this?
thank you

I’m guessing that you’re asking about a Garmin map from somewhere?

If so, I’d raise the problem with whichever web site it was that you downloaded the data from. Lots of people make available maps for Garmin (and other) devices in all sorts of formats from all sorts of places. Without knowing what you downloaded from where it’s difficult to comment further.

If it is a Garmin map that ypu’re asking about, see https://wiki.openstreetmap.org/wiki/OSM_Map_On_Garmin - there are details about how to create your own map there, and also lots of other download options.