Pet Food Direct Mold on food; inconsistent consistency of food; and Unknown items found in food Internet

 My dog has megaesophagus and because of constant regurgitation needs to be on maximum calorie wet foods. Since her esophagus doesn't have motility, the food must be more of a watery consistency so nothing gets stuck in her esophagus causing a blockage. The vet I take her to said to order from petfooddirect.com because the prices were cheaper. One of my cases of food I received from them had mold all over it. There is a huge disparity in the consistency of the food from case to case. Some of the food has so much oil in it that it needs to be tossed. Some of the food is so thick and appears to be old. I end up tossing most of the cans. I have found unknown items in cans of food which has caused blockage and the dog had constant regurgitation until that item came out. I looked for items in the cans but some are impossible to find with the inconsistency of the food. When taking the food out of some of the cans with a spatula, I noticed parts of the lining of the can peels off into the food. Because of the food I received from petfooddirect.com, my dog has required many visits to the vet including ICU stays because she was having chronic regurgitation with massive amounts of weight loss. Every time she was at the vet, she never had any issues with regurgitation and I believe it is because they get the food directly from Iams and it is always the same proper consistency. Petfooddirect has offered to replace the food, but I don't want that because I know I am only going to end up with inconsistency in the food. Now I am stuck with approximately 70 cases of food I can't use and can't return. The money saved in the food purchased ended up costing me at least 10 times more in vet bills.