Awww, so sorry. Is there any way you think vitamins could help? Sometimes it does. If it is genetics, it doesn't help; I googled it once. I had a cross beak chick who lived to be 6 months old, but died because it just couldn't get enough food. Had to scoop it. Some people tube feed theirs....not a route I wanted to take. Sorry about the poor hatch. Were they even fertile? Most people will resend the eggs for just the cost of shipping.Totally bummed. I ordered Tolbunt hatching eggs and only one hatched. At one week you can see it's starting to turn cross beak. My heart is in my socks, I hate to cull and it looks like I'll have to again now. My heart is heavy for this little baby and a total loss of my investment.