Supreme Living Thermo Burn Scam Las Vegas Nevada

I saw an add on Instagram diet pills that were on shark tank and once I went into the website I saw the special for ThermoBurn buy 3 get 2 free. I was expecting to spend about $100 but once I saw I was charged $198 I was surprised and I called right away to cancel. I called Supreme Living and they said I needed to wait until I received the bottles so I can return them. I never received any bottles. I called my credit card company, Citibank and told them I wanted to cancel my order and tried with the vendor but they said I needed to wait to receive the product. I opened a dispute but the credit card company received a response saying it was delivered. Why should I have to pay for a product I was not expecting to pay that much and for a product I didnt receive. Today I called back and spoke to someone and I was told they can't transfer to a supervisor and no one is available to speak to me. I believe this is a scam because I did not authorize the charge of $198. Supreme living says that my account at there company is frozen because of the dispute that's why they were not able to help me and I should work with my credit card company. They did provide proof that the product was delivered but that is not true. This is a scam.