Milma — Milk is useless after boiled with an ugly smell

I brought 2packets of milma packets(blue)today with a promising expiry date.Afther the usual boiling the milk gets thickened half and other transformed like a light white water mixed as u can see in the attached photo..The 2 packets have the same issue . Regarding this issue I suddenly approached the shopowner twice to replace these two packets one by one frequently.They are also helpless bcoz of milma replacement policy.And we decided to switch to another brand