Cross Blade Replacement for Magic Bullet

I purchase this replacement Magic Bullet Cross Blade for my Magic Bullet blender at the end of December 2022. I use the blender every day to make my smoothies in the morning and it lasted about 3 months before leaking from the rubber part that fits into the blender. When I noticed the leak and check the rubber part, it was wobbly and no longer firmly attached. When I checked the original Magic Bullet Cross Blade the rubber part is firmly attached and doesn't wobble. I contacted the seller, Super Bargains, and they responded within a day or two and was willing to send me a replacement. I provided my shipping address and asked to be notified with a tracking number when the replacement parts gets sent out. Super Bargains assured me that they will. That's where it started to go downhill. I have written them several times asking for progress and have not heard back from them. Beware of this seller, they do not stand behind their products. Buy from the original manufacturer, it'll save you some headache in the long run.