Chefman Countertop + Travel Dynamic Blending System

We have had this blender a few months now and have had nothing but problems. One of the blender attachments does nothing but leak when being used. It hardly blends at all; and we aren't blending anything crazy: some fruit and yogurt and milk for a morning smoothie. If you love chunky smoothies, then definitely use the cross attachment. We've tried several times to fix the attachment and try it on multiple blender cups but they all leak through the entire blender itself and goes all over the counter top. The second blender blade attachment works a lot better but we have to use it very quickly because if the blender is going more than 45 second or so, the liquid inside starts to overheat. And I mean cold milk getting to feeling like a warm tea. On the lowest setting possible. On top of that, this blender now is screaming so loudly that it hurts your ears to be within earshot of it. This blender is definitely causing way more issues that solutions.