They should still be charged if the wrong amount of postage has been paid.
So if you send what royal mail count as a large letter but with a normal stamp instead of a large letter stamp they will be fined and charged the difference in postage.
Only if they want the letter. If they don’t want it, the postal service will gladly destroy it at no charge.
Thus, this isn’t necessarily a good way to exact punishment on an unsuspecting recipient. Someone who gets a lot of fan (and hate) mail will gladly forego the small handful that don’t have postage.
They should still be charged if the wrong amount of postage has been paid.
So if you send what royal mail count as a large letter but with a normal stamp instead of a large letter stamp they will be fined and charged the difference in postage.
Only if they want the letter. If they don’t want it, the postal service will gladly destroy it at no charge.
Thus, this isn’t necessarily a good way to exact punishment on an unsuspecting recipient. Someone who gets a lot of fan (and hate) mail will gladly forego the small handful that don’t have postage.