This is trouble since I suspect this was an internet sale and the company is not located in your state. That means you need to bring any complaint to the courts of the state where the company is located or is incorporated.
You may wish to start with the agency of the state that regulates corporations.
You’d need a lawyer to sue an out of state vendor and it won’t be worth the cost. Report them to BBB, AG and FCC. Always pay with a credit card for online purchases so you can dispute.