When there are more caregivers than parents they can take longer and that means contacting more people. Don't seem too eager to make them contact you right away. What a lot will do is take a block of time and email anyone they can find that seems to meet their needs and ask for info. Then they will sit back and collect replies for a week or so. THEN they will choose from the replies the ones they want to actually go and visit so you may still hear from the others. Asking them to call you the next day is too soon if they are still in the info collection stage so don't worry that he hasn't called yet as they may still call.