It's always great to receive thank you letters:
Hi, My daughter has just come back from a hallow'een
party/disco at the Friesland Sports Centre in Sandiacre. She was over
the moon and had a great time. I saw your 'Mr Custard' website on
the van and decided to enquire about the possibility of entertaining at
her 7th birthday party on March 25th next year from you Fay Trewhella.