X Bull is just another Chinese "company" ... I am guessing that there is some factory called Shanghai Winches or something that sells things under a bunch of different names and once people figure out they suck, they get discontinued. Amazon is really great about letting that happen and then you have zero customer service.
I bought the X Bull recovery boards earlier this year. They were supposed to come with a carrying bag. They did not. The seller gave me an endless amount of shit about how there were mistakes on the ad, blah blah blah and actually rewrote the ad and then asked me for a screenshot. Fortunately I had thought ahead and had taken one and the idiots finally sent me a bag. I won't ever buy any X Bull junk again.
These Chinese companies are fairly easy to spot... if there are a bunch of seemingly identical products listed on Amazon or eBay under different company names, there's a really good chance that you may get a POS with no real warranty or parts ever available.
I hate to say that Harbor Freight is a better option, but here we are.