Hi Branman!
I think you should wait till the end of the week before you get worried. Just leave a few running around for them and watch to see if they eat them. If they do then do it for a while so they get used to the roaches and then use the feeding bowl. Because they only eat live food then if their in the bowl they sometimes stay still and the frogs don't know its food. If you let them run around they will know its food and hopefully eat it.

You could also try hand feeding but just wait a bit Good luck!!!