Great Value Mozzarella Cheese Slices

I purchased Great Value (Walmart Brand) Mozzarella Cheese slices. The next day I opened it and it had already turned blue. Then I noticed there is no expiration date on the packaging anywhere. I threw it away because the blue mold was also on the packaging. I'm not keeping that inside. Walmart said there is nothing they can do since I threw away the packaging. Poor customer service. Don't buy Walmart's Great Value brand, stick to name brands. Here is what it looked like:

https://www.youtube.com/shorts/kL5IgBe2byQ