Moldy dog food and no Refund

I used to buy all my dogs stuff from here. Until recently got a bad batch of Dog Food (Montego). I brought the incident to the attention of those in store, they were to speak to management etc...I've not received any feedback from them or Montego who they are passing the responsibility to. This happened 2 months ago. (I gave them enough time before writing this review. Since the initial report I've been back to the store 5 times each time talking to someone different who can only pass on messages instead of help. My logic is, they took my money they should refund me, i should not be waiting for Calls or emails from Montego.