They died in the district of Richmond, Yorkshire, and were recorded at the Registry Office there - I was present. However this entry appears on findmypast as taking place at Richmond upon Thames, Surrey. I even explained that the first part of the code number differentiates between the districts but they then asked me for proof of this!! I think at this point I gave up.
The deaths were 3 years apart so there must be hundreds of incorrect entries and I wonder how many people have been misled into looking in completely the wrong county.