Mother Dairy — Selling spoiled milk

Hello sir,
I would like to formally lodge a complaint against MOTHER DAIRY BOOTH NO. 751. We have constantly bought token milk from this booth from last 20 years however in last couple of months the quality of milk has highly deteriorated with milk spoiling very frequently and booth not taking any ownership and replacing the defective product.
Kindly take strictest action against these culprits as they are playing with food of children as well as elderly.
Thank you