Help
DS has been potty training for a few weeks. Was very reluctant at first (lots of meltdowns if had to go out without nappy) and reluctant to use potty.
After a few days we cracked it and he is now weeing and pooing on toilet happily at home.
But he won't go at all at the childminders or nursery. 
He goes to nursery every morning and so he just holds on. Doesn't wet himself but doesn't use toilet either.
When I pick him up he goes as soon as he gets through the door. However, when the childminder picks him up he holds on even longer, obviously uncomfortable and childminder has said he has been holding back tears on occasion. He then gets so desperate that he just wets himself - usually in the garden.
CM has tried everything. Sitting him on potty, stickers, the lot.
I've tried to talk to him about it and he just says that he doesn't like her toilet.
Help!