'Cancellation Consent' Form?

I never signed off on any forms for lab, cancellation consent, surgery consent, etc. I did pay for the deposit for a potential date and that was about it. Can the surgeon's office still charge me 100% of the surgery fees? (Also, I did call and left a message- more than 2 weeks in advance- that I wanted to cancel. I didn't even ask for the deposit back nor did anyone call to ask or confirm why I cancelled until the day before the supposed surgery date. In general, the office was always hard to reach too.)

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