CC,
Don't be too discouraged. A senior member should chime in soon, but from what I've experienced with mine and read so far, is that when you bring your cham. home, let him/her settle in for a few days.
Your cham. may not like dubias and that's just the way it is for now. He/she may try them at a later date. Keep them in their bin with food and water crystals and wait till next week. Try another food item (crickets) and go from there. From what I've seen, meal worms are a "treat" item and should only be offered occasionally. My feeding schedule consists of dubias, crickets, and super worms with a calcium supplement (no D3) everyday and D3 and vita. X2 per mo. (Veiled). I've also researched silk, phoenix and horn worms, but have not ordered any as of yet.
Best advice I can give you at this point is to visit your local pet shop and see what they have. Lots of options in SD, if you live there. Try a few different things and see what he/she will try and go from there.