i think the childminder does not trust me. i asked her for her registration number as need to give it to the working tax credit people and she said it was like giving me her pin number and made some excuses and never got back to me. also i had to give her a retainer fee of 60 pounds before she has done any childminding. i am leaving my kid with her starting mid jan, paying her money in advance - and she doesn't want to give me her registration number. surely it's me that should not trust her. what shall i do? can't back out as she has taken money - maybe she will turn out alright??? need advice please. aibu to be worried about whether this arrangement is going to work?