Vista Tech review: Putting a firewall on my computer.

On 01/18/2023 I had a trojan on my computer. A telephone number came up and promted me to call it. They offered to clean it up and install a firewall on the computer. It cost me $997.50. Two days later I got another trojan on it. I called thier office asking for a refund asking for a refund and I was told I would get it, all I want is a refund. I thought I was dealing with honest people! Jon j. Carlson