SIR - A most unlikely casualty of the recent Royal Mail ‘privatisation’ seems to be the post box for customers of Sainsbury’s supermarket, Greengates, where I have shopped regularly since it opened in the 1970s.

As this Sunday I found it sealed with an explanatory Royal Mail notice attached advising that the post box at Greengates Sub-Post Office should now be used instead - this being more difficult to access, for example for OAPs, with lack of pedestrian crossing facilities on Harrogate and Leeds Roads.

Very surprising, as Sainsbury’s post box always seemed to be well used and with a 14.30 hours collection time probably gave your letters a head start over the usual 18.00 hours Post Office collection.

Royal Mail services seem to be in a downward spiral recently before and after going ‘private’ with Sunday collections ended years ago, and numerous sub-post offices closed, this against a background of ever more expensive postage stamps and other rates!

Can Royal Mail explain this please?

DS Boyes, Rodley Lane, Leeds