I feel for you Robert, and the state of Royal Mail these days get my back up.
I received two letters today, informing me of important changes to the way my utilities bills have to be paid, due to now being in receipt of State Pension, and telling me this must be actioned within 7 days, or further costs and charges will be incurred.
Both letters are dated (and presumably posted on) 5th May so it's taken 8 days for them to travel 12 miles !!!
Hell's Teeth ! It was faster when the mail was delivered by a horse-drawn coach !