Defective product / poor customer service - Samson Smith & Wesson M&P9/M&P40 Shield Compact Magwell

I purchased Samson's compact magwell and +1 mag extension for the M&P Shield. They claim they are compatible with each other. I had issues with the magazine catching unless I hit the bottom of the mag pretty hard. I tried 2 different factory magazines with the same result. When I remove the magwell, the mags catch just fine. The issue is only when the magwell is in place. I notified Samson of the issue and after nearly 3 weeks of waiting on a resolution, I finally gave up. I do not recommend these products, nor Samson in general due to poor customer service.