Why not do what the Royal Mail suggests:
From their website:
If the mail with a different address has been mistakenly put through your letterbox, we have clearly misdelivered the item and apologise. Please mark the item as ‘Misdelivered' and where it was misdelivered to and re-post. No further postage/payment is needed for misdelivered items.
-----
Because the letter has been opened, best not to tell them the misdelivered to address.
From their website:
If the mail with a different address has been mistakenly put through your letterbox, we have clearly misdelivered the item and apologise. Please mark the item as ‘Misdelivered' and where it was misdelivered to and re-post. No further postage/payment is needed for misdelivered items.
-----
Because the letter has been opened, best not to tell them the misdelivered to address.
Comment