Help please - Debt Collectors not for me!

[GlitteryFarts]

I live in house number 1 on X street with my postcode.
At the end of my street is a block of self contained residential apartments for over 60's with a different postcode solely for the block of apartments.

Over the past 3 months I have been getting letters posted for a gentleman to my address and their postcode.

Mr Smith
1 X Street (my address)
His postcode

His address should be:
Mr Smith
Apartment 1 - blablah Court
X Street
His postcode

I have returned these letters to sender numerous times advising of this error on the envelope. I have tried to gain access to the apartments but it is secure and I cannot get in, I assume postie has a code. I am working when postman comes.

Today I have received a debt collection letter for this man so have tried to get in touch with British Gas. Almost impossible - no email address, Facebook and live chat mainly BOTs who just want his personal details before I can get put through to a human.

Finally managed to speak to what I think was a human in live chat although not 100% as they kept asking for information I had already given and didn't seem to have a clue.
Eventually they told me their mailing address was
Apartment 1 - blablah court
X street

I told them this was not correct as i was holding his letters in my hand and it was clearly missing off half the address. They asked for a photo which I sent. They then asked for my name and if I had an account with them. I told them I did not have an account with them and would not be providing my name I was simply informing them to update their system to his full address. They said they had added a note to his account and closed the chat.

I am with a different supplier on a pay as you go meter and have been for the last 12 years. I am still being supplied by my supplier and he is being supplied correctly by British gas as the supplied address is correct just not the mailing address.

What do I do if bailiffs turn up at my door? My teenagers are often home alone during the day in summer when I have shifts in work and I am worried they will open the door and bailiffs will just come in.

Please any advice?

I'm also worried they may try and switch MY supplier over to British Gas following this conversation with live chat who didnt have a clue and kept asking for my details which they didn't need to resolve the issue. I didn't give them any details about myself but they have my address and I told them I was not with them. Can they do this without having my personal info because I feel that is what they were thinking?

Probably your teenagers are older than mine but in my house the rule is that everyone who needs to be in would have a key already. Even delivery can come back later. Just have a blanket rule not to open the door.

I'd just write "Return to Sender - Not known at this address" on the envelope and put them back in the post box.

Try not to worry, I would write return to sender, no longer at this address on the letter and post back through the post box.
Enrol yourself on the electrol role if you already haven't, and if they were to turn up, just show them your ID, they can't do anything.

I have done this at least 5 times over the past 3 months. The letters still continue.

If bailiffs show up, all you have to do is show them your ID and tell them where to find Mr X. They'll be quite happy to go and bother him at his actual address. This happens all the time.

@seensome I would write return to sender, no longer at this address on the letter and post back through the post box.

Did you actually read the OP. This man has NEVER lived at the address! He lives in a block down the road. Why on earth would you advise the OP to write 'no longer at this address???'

I agree with another poster OP, IF bailiffs arrive, direct them to the correct address and if needed, show your own ID.