Yes, I have one too!
I bough the toughest one so obviously I can't use it. It feels like pulling at a wall. I tried it with my legs, desperate to find anything to hang it from, which I did, and then I had such a cramp that I thought I would make myself some tea and reconsider this band. I should get a lighter one. But I will continue with this one until it works. The silly thing is it's freakishly long. So my tip is: don't buy ones that are too long 😊