Sour milk

Hi there I'm very disappointed and in a very bad predicament right now, my 3 year old drinks fresh milk and I only buy the parmalat 6 packs of long life milk as it has a great taste. I bought 3 cases just before the lock down enough for her to have milk everyday and last night we opened a new case and every single milk in the case was thick like yoghurt and sour and it only expires in August. Now.... I've got no way to get to a shop and my daughter is going to run out of milk. Is there anyway that I can get a replacement just so that my daughter has enough milk during this lock down period? I'm sure you understand my frustration as I cannot take a taxi to a shop right now and I'm going to have a child screaming for milk. Please let me know ASAP