I purchased Soft & Dri aerosol anti-perpirant. It sprayed for a few times, then conked out. So I went and bought another one - same problem. I went to the website and complained. I never got an answer, so I called the 800 number. They said they received my complaint and would be sending me a coupon for a free one.
They also insinuated that the product had probably fallen off the shelf (or maybe the truck). A year later and no coupon.