******* expiration of paid deal

I bought a spray bottle of lens cleaner from them. It was expensive, but they convinced me to buy it based on 11 included refills. I went there yesterday for my 4th refill, only to be told this would be my last, they do not honour that deal anymore. This is *******. They should honour the clients that paid on that deal, and not sell that deal anymore if they so choose. They will never see me again and I will spread the word..