Office review: I was denied the service and experienced deceptive practices

I’m struggling to articulate how I feel about this situation. Essentially, I have proof of what I paid for, but I was denied the service and experienced deceptive practices. The Botox units I purchased were taken by the staff and used elsewhere, with false claims made that they were applied to my face. A dermatologist confirmed that such a quantity couldn't have been used. Additionally, I was subjected to verbal abuse and gaslighting for merely requesting clarification. I have decided to sever ties with this organization. Despite my requests for them to stop, they have continued to harass me through phone calls and emails, prompting me to file a restraining order. I am perplexed by their actions and their refusal to stop their harassment.