Poor customer service Zuluzenith!!!

I bought a large sports bra, same size as my previous sports bra from them. This one was way bigger and not even giving me any support. I notified them within an hour it wasn’t fitting and requested a medium. I couriered it back to them, the tag wasn’t even removed. They rep**** a few days later it is stained they can’t exchange it. I fitted it on first thing in the morning and had it on for 1 minute. I received it back and cannot see any of the so called stains they were showing on the pictures. Their sizing issues has become my headache now….