Original post : https://www.reddit.com/r/CATHELP/s/1QRzQfibwN
Update 1 : https://www.reddit.com/r/CATHELP/s/fBSYpcbNjc

Thank you to everyone for all the kindness on my previous posts. This will be a last update.

It's been 3 weeks and I don't even know why I'm making this update. I never thought it would be this kind of update so I hope the moderators allow it.
All 5 kittens have passed away. 

We thought that after the foster mom at the vet clinic rejected them, they were taken to another foster mom but the truth is they kept them there at the vet clinic because somehow the foster cat changed her mind and accepted them the next day. 2 kittens died because they were "weak" , they said. 3 days ago they told us that the mom cat was no longer able to feed the remaining 3. They told us the vets at the vet clinic would be feeding them .We were supposed to get them today to foster them.We were told that none of them made it instead. They didn't even bother to let us know until we reached out to ask when to pick them up. I wish we had taken them the moment they told us they would be "taking care" of them. 

I can't believe I found them at 1 day old and managed to keep them alive but a bunch of people who call themselves "vets" neglected them so bad to the point they all passed away. They told us the remaining 3 were all strong and would make it yet the moment the responsibility fell on them they suddenly passed away. They would be 3 weeks old today. My heart is broken. I was so excited to have them back. I was hoping to save at least one of them.

Rescued newborn kittens from a trash can - Final Update