Very bad service

I logged a pickup as the blinds are the wrong and followed with an email I was told they are waiting feedback from their marketplace. after waiting for days I emailed them again and now I been told the store called and I didn't have an idea of which product I need to return. No one ever called it is only 1 item so how would I not know what I ordered and that what needs to be returned. I trusted this company for a good service but clearly their online is very bad with service