Apple India — charging me 1000 inr cash for restoring my apple ipad

Address: Mumbai City, Maharashtra, 400028

Website: Apple ipad store

I just went to maple store at r city to restore my ipad as i had disabled it due to forgetting pwds and retrying several times
The device centre was shut so the one of the store salesmen offered to help restore it through his apple mac
He managed to do that and asked me to pay 1000 for the service whi h was hardly anything and not authorised
He had not told me before that he wud charge me this amount even if i did not go to service centre

I am very upset as just for forgetting pwd i paid 1000 inr