Puppies not eating

Question
Hello, I have two new puppies and they are a little over a month old.  They are Dachschunds.  Just recently, about 2 days ago, one of them (the black one) just seems very tired all the time and whatever we feed her she will not eat it at all.  All she does is lie there and seems to be getting worst today.

Today, we found that the other one (the brown one) is showing the same symptoms.  What could be causing this?  Is there anything that we can do?  I'm afraid that they will starve themselves to death soon.  

Thanks for any help!

Answer
Thanks for your question.  My advice would be to call the seller and see what they were feeding and get them on the same food that they were eating.  If you are feeding them the same food then tell the breeder what is happening and they should be under a some kind of contract where they will pay for the vet bill if nessasary.  Because they sold them to you in perfect health and now they are getting sick.  Just let the breeder know what is going on and see what they can do to help.  Hope this helps.  Let me know.  

Kati