DD is 3 and has a name which is commonly shortened - similar to Catherine being shortened to Katie/Katy.
We use her shortened name so that's not an issue but they keep using the 'ie' spells when we have always used the "y"
I mentioned it to her key worker last week and she said "oh, silly me!" - I noticed the next couple of pictures to come home had her 'full' name written on them. Yesterday she bought a craft home with "Katie" on. AAAAGGGHHH. DD 3 even said " spelt my name wrong again" so I can't imagine that our DD won't also have told them- she can write her name(s) but never the ie spelling! 
WIBU to speak to the nursery manager on Monday and ask they use the same shortened version we do or just use her full name!?
(and yes, I know this is a first world problem of the highest order!)