bought an AFR gauge, module, and sensor from them....

bought an AFR gauge, module, and sensor from them. hooked it all up and found out the gauge didnt work right out of the box. i contacted their customer service people and after about 20 emails or more, they said to ship it in (on my dime). so i did. they sent it back to me after about a month with no updates on my device. it gets back to me, and still doesnt work. its supposed to be top of the line, but their customer service is AWFUL, and i just need a wideband. dealing with this company has been awful.