Sorry to hear this happened to you, but I've had great results with TEMU and only one crap product which I immediately returned. On a shipment that disappeared into the void after receiving tracking updates stating that it was on the way to my house, they immediately refunded the order, after a quick set of questions (asking what happened, basically), I returned (at their expense) the crap product and will be receiving a refund on that, too. The good thing is that everything was done on a credit card. Obviously, if there was an issue with the refunds, I'd challenge it on the card.
I have to say that I've bought quite a bit from them and despite the slightly long (about 3 weeks) wait time, I have received some amazing products at an unbelievably cheap price. I go to the site knowing that I'll rarely get "name" products. I don't care. I take generic medications, so who cares what the label is on my shirt as long as I like the shirt? I know I didn't buy a Canon camera, but a "Saneen," yet the quality and features on the cheapie are pretty impressive. The key is to really look at the description, the photos, the reviews, and then at the size (if applicable). One thing I can honestly say is that I've never received something that wasn't the same as in the pic and description, but those are my experiences.
FWIW, no, I'm not trying to plug Temu or contradict Natasha's posting. I've no doubt that she didn't get a good product and is right to be unhappy, but my experiences have been the complete opposite for nearly everything. Still, proceed with caution as YMMV.