Rotten meat

I purchased 2 x lamb shanks from Morning Glen p n p on Monday. Took them out of the fridge on Tuesday and baked them slowly, as per usual. Sat down for dinner with my partner and guess what- both shanks were rotten/ off. Contacted p n p last night and am still waiting for a response. The majority of the staff at that branch are in serious need of training and this particular store does not have a clue on what to order or when. Totally disgusted. If p n p do not come to the party, I will terminate my 20 year patronage with them.