I keep receiving the Wrong Mail

No helpful suggestions I'm afraid but the next street and same house number is easier to understand than the Christmas card delivered to my son.
Wrong name, wrong number, wrong road, wrong country, wrong continent! The only possible link was the town. Perth Australia was the destination so why did it land on DS's mat in Perth Scotland????

Wrong stamp?

I don't know Onestepbeyond but it happens to us all the time. Similar (not same) address, entirely different postcode!
And correctly addressed mail we have sent going via the north of Scotland to arrive weeks later at the destination which is about 3 miles from us (nowhere near Scotland!).

I sometimes wonder if employees of Royal Mail are all literate.

mcem yours is best though

We live on the cusp of one street name and ours. It’s still the same street, but for historical ( 100years ago) reasons the name changed at our next door neighbours house.
We are opposite the same number house in X street, but we have the same number in Y street. When they numbered the houses they had X street with even numbers opposite Y street even numbers.
Confusing enough for the locals never mind the postie!

I would mark it 'wrongly delivered' and pop it back in a post box.

We don’t get the wrong post but we do get at least theee fast food deliveries a week destined for the same house number in a different road. So far we haven’t just said ‘thank you’ and enjoyed the unexpected.

I’m not sure what I’d do onestepbeyond other than send a very stiff letter to the general postmaster again making it plain that this is his/her problem and not yours and saying you wish to use the formal complaint process. The people not getting their mail really should also be complaining. Perhaps suggest this to them?

There used to be an organisation called Postwatch that dealt with this sort of problem.
Looks like Citizens Advice is now the place to go.

A sign on your door adjacent to the post box:

POST-PERSON PLEASE READ.
I am NOT Mr or Mrs Whatsit. They live in the next street. PLEASE do not deliver their mail here".

I got so sick of being called to my door, after dark often, by people selling things, wanting me to change power or ISP companies or asking after the state of my soul that I put up a notice fending them off. I haven't had one unwelcome visitr since.

I ordered an item online in 2017. It never appeared so I contacted the supplier and received a replacement. This week, the original item turned up, clearly postmarked 2017, in pristine condition, not mucky or squashed at all. Can't imagine where it can have been hiding for the past 18 months.

Talk to CAB, and possibly complain to your MP. Emphasise age, (and infirmity, if this applies). make clear how long this has been going on.

Another though. Contact your local paper/local radio. There are times when plucking the harp of age works to our advantage, even if we do it through gritted teeth.

Frankly, there is d--n all you can do about it.
When we lived at no. 127 in a block of flats that were no. 127, 127a, 127b, 127c, 127d and 127e anything and everything addressed to the first floor landed on our doormat, irrespective of what letter was written after the number or the name of the person the mail was addressed to.

When we complained, the postmaster said the postmen read the floor number, as it isn't their business to keep track of who lives where. I pointed out that the names of all three people living in the flat where on the door and that when sorting post surely they could check the presence or absence of a letter after the number, but no, they couldn't or wouldn't.

I agree Mr. and Mrs. X should complain that they are not getting their post.

Thank you all for your responses
It seems we have an outdated postal system in several areas.

@mumofmadboys Yes I have done this several times already. The description above is of many letters at each stage not just the odd one.

@grandtanteJE65 and @cornergran I will not go round to their house since I have had a knock on my door at 8.00am on a Sunday morning, it was a probation officer who insisted this was the house of Mr X and was trying to gain entry to arrest him ! I complained to probation about this at the time-

@M0nica yours is a good suggestion
Also BradfordLass72 very good idea .

Good luck all

Yes, it's not just the postman delivering wrongly to this house or trying to take me away in an ambulance - but no-one trying to arrest me (yet)

This kept happening to me. One was even the wrong town. I kept putting them back in the post box with wrongly delivered written on them.

It happened so often I got fed up and gathered a pile together and handed them back to the postman next day. He was not best pleased that I had written on them in red felt tip ‘Your post was wrongly delivered to (my address) on (date)’

We shared a similar problem when a block of retirement flats was built about 50 yards from our road and was given the same name: Hillside Road and Hillside Lodge. Quite a number of Hillside Road residents complained to Post Office and Local Council but we were assured that, as they had different post codes, and were on different 'walks', ie different postwo/men. There would be no confusion.

Oh really? No, post was always being delivered to the wrong address. Saying 'We told you so' was no consolation at all.

UPDATE- Saga continues-
After receiving 3 more letters for next street same number - I did what @BradfordLass72 suggested by printing out a sign on A4 paper with as big a font size as possible a notice- POST-PERSON PLEASE READ.
I am NOT Mr or Mrs Whatsit. They live in the next street. PLEASE do not deliver their mail here"- and I selotated it inside my door just above my letterbox.
Then I put the 3 newly delivered wrong mail hanging out of my letterbox when I came home from work they had been pushed through! I left them hanging out again the next day before work, they'd been pushed through again, but on those two days I didn't get any other post so presume it must have been a passer-by who'd pushed them through the letterbox.
I threw them down on the floor on my path with the address showing upwards. It snowed- they are still there covered in snow-

@BradfordLass72 I would be interested in the unwanted caller notice that you have ...