Business ProfileforDirect Vapor

I had purchased a product from this business and when we receive the product it did not work. I called them to discuss what I should do about the product and they said it is within a warranty. And to send it back in and if they could not fix it they would replace it. I sent my product back in and then I called them to see when they got the product back and they told me they had never received it and then stopped taking my phone calls and I never got a refund for them taking the product back and never replacing it. I have been fighting this for a long time and now they have swapped their name on the business and there is no phone number for me to call to see about getting my refund or my replacement for a product I purchased. I had no issues with the business prior but then they told me to send them back a product so they could look at it and see about fixing or replacing it and I never heard back from them they told me they never found the mail that it was shipped back to them and I never received a refund or replacement and I am now convinced they have stolen from me.