Office review: 3 weeks later no refund and they say that they will keep my deposit

So, I booked a virtual consult , explained that I had a blood clot in 2000 the lady said oh you’ll be fine that’s long ago blah blah, long story short. She took my deposit $500 , they told me to have a medical clearance completed 30 days before which I did, my hematologist and pcp cleared me and did all necessary blood work. Goals harassed me to pay half survey 30 days before procedure, I paid. They already had my clearance they confirmed it, 2 weeks before my surgery I get a call from some lady saying my surgery has been cancelled and they will contact me in 7 days for refund. 3 weeks later no refund and they say that they will keep my deposit. I was going to fight this but I just give up. I just feel like they get deposits from ppl and then keep it no matter the situation even when they cancel the procedure after you’ve followed all steps. So I’m down 3500 hoping that they give me the 3,000 back at least m. I really think that they do this to so many girls it’s sad