Judging aside, I had a client that I specifically told three times the cost of the deposit, however at the consultation she offered me half. She insisted that she would pay the rest at fitting and became very intimidating.
I point blank refused to accept it and sent her on her way. She then msg'd me a week later saying she had the full deposit however I chose to refuse.
Your completely right, you provide a service and you clearly stated your terms. Let her find somewhere else! X