Very disappointed in Petleys Cat Food

My 18 yr old blind cat has been eating Petleys chicken pate for 4 yrs. Unfortunately, she wont eat anything else. However the pate is no longer a Pate, it is much co****r, there are HUGE chunks of what appear to be windpipes, which are NOT ground up at all. This week there were two pieces of something that i could not identify, they could have been thin leather, cardboard or who knows what? I sent an email to Petleys, customer relations, to give them a chance to come back to me, however they have not had the courtesy to reply to me. I am desperately now looking for another food that my cat will eat.