I am very happy to be given an opportunity to send you a Christmas gift this year. Please thank your mother for providing your new postal address.
I sent you a package yesterday and I noticed that the delivery was attempted this morning, but surely you must have been at school and no one was home to receive it. The collection note has been left by the postman, so you can get the package now from your local collection office. I hope you will enjoy it :-)
I wish you a very Merry Christmas and a very happy and prosperous New Year 2018!