Gerrity's and Walmart PA Stores review: Milk spoilage before expiration date

For the past two months, I have purchased 2 % milk in both half gallon and gallon sizes, and each time the milk is curdled far before the date stamped on the containers. I wanted to know why this is happening, and I resourced a number of states whose residents have been experiencing the same problem. Is this due to a problem in transporting the milk due to delays regardi9ng Covid? Are other PA residents experiencing the same problem? I had to dump another partial gallon of milk (1/18/22) and the expiration wasn't due until the 21st.