Chicken lickin

I bought ice cream today for me and my grandchildren, first lick i could taste that it was like sour milk, my daughter said the same thing, i went back to the shop to inform them and give them back the ice creams, they treated me bad, there was no apology, the lady threw the money back at me, without a reason maybe i should not have taken tha 7 ice creams back, i was so disappointed by their treatment.