Pretty sure it gets sent back to sender if you remembered your return address.
british stamps
you have to put i think 2 or 3 stamps on a letter to Santa
Only if you want the post office to deliver it. If you take it to the recipient personally, no law says you have to put stamps on it.
1 :)
It is proof that youpaid to mail the letter
One.
your post office will weigh the letter and tell you the exact amount, they will then sell you the appropriate stamps, put them on your letter and mail it.
10
2
Yes.
The post office will cancel both of them, if amount is sufficient, the letter will be mailed.
On a standard letter just one.