Bootleg Inc Smuggler Receiver Set 5.56 NATO Black AR-15 Upper and Lower Receivers

So I purchased this...

So I purchased this set to build a 300 blackout for my daughter, I love the feel and look of it . The weight is awesome , I can't tell you how well or badly it functions because it doesn't. The bolt stop does not fit in the lower and the gun will not function . We assembled it and it is possible we did something wrong , but will will never know because we have spent the better part of 2 weeks trying to speak to someone at Bootleg and can't get anyone on the phone , a return call or text , nor do they respond to email . Really is unfortunate as I had planed to purchase 2 more of these sets to build 224 Valkyrie's and another upper to build in 224 Valkyrie. I guess someone else will get that business . I fully admit this may be something we are doing wrong but noone who has looked at it can get it to work either . I guess as a Vet and my cousin who has been working on it is also , it is very disappointing to see this kind of service from a company that brags about being Veteran owned and operated.