A Christmas Letter

I heard a lovely story yesterday and thought I'd share it with you. It went like this...
It was coming up to Christmas and a man working at the post office was given the job of sorting through all the mail with incorrect addresses or postcodes on them. He was working away when he came across a particular letter, all it said on the envelope was "To God". The man was intrigued by the letter and decided he should open it to see what it was all about. The letter read: "Dear God, please help me I don't know who else to turn to. I am an 83 year old woman living on my own with only my old age pension to survive on. Yesterday I was in town and my purse was stolen from me, it had £100 pounds inside which is all the money I had. I have invited 2 dear friends to spend Christmas day with me and now I have no money to buy Christmas dinner. I have no family to help me out and don't know what to do. I hope you can help, best wishes Mavis"
The postal worker was saddened by what he read and told his colleagues about it. They all dug deep in to their pockets and between them managed to collect £96. They popped it in an envelope and posted it to the old lady.
A week or so had passed and the postal workers all had a warm feeling inside knowing that they had helped the old lady enjoy her Christmas. Then one day another letter appeared with only "To God" written on the envelope, the postal workers all gathered round and opened the letter together. It read: "Dear God, Thank you so much for helping me out over Christmas, my friends and I had a wonderful Christmas dinner and without you it wouldn't have been possible. I don't know how I'll ever be able to thank you enough. Best wishes, Mavis. P.S. The envelope was £4 short I think it was those Bastards at the Post Office."