HI Carol,
I didn't see how old your little one is... 2 weeks at 3 times a week isn't a lot of time to adjust. It's hard to know how the information about how your daughter's day was presented, but maybe it wasn't annoyance as much as them wanting to let you know how things went so you could be prepared for how her evening might go. I know that in my daycare I feel bad if a child doesn't nap or eat well, even if there was nothing I could do about it.
As far as the $5/$7 switch, my best guess would be that it's full-time vs part-tiem rate or it's an age thing or both. Where I live, licensing only allows there to be a small number of infants in care at one time, and infants are considered to be children under 2 years of age. Some people will not take infants part-time for that reason; because it's much easier to fill a spot with a child under 2 than one over two. And in most cases you get to have infants for a longer period of time. It just makes good business sense to fill full-time spots with infants.
I think it's very hard to find a good daycare. Where I live it is very easy to get a childcare license, and the agency that oversees care is severely understaffed. It's not unusual to go for a period of 5 years without having someone from licensing come for a visit. Sadly, there are lots of people out there providing substandard care in all kinds of ways and for all kinds of reasons.
My best advice is to keep looking. Speaking from experience, finding a good
care provider is not easy. It's a hard hard job with long hours and high burn out. Your best providers won't necessarily cost more, but they will be harder to find and have a longer wait list. And your need for part-time care narrows your choices even further. Prepare your list of questions when you go for a visit, including how they deal with napping issues and eating issues and interview the provider. A good provider will have had experience dealing with children transitioning to their care, and will be able to reassure you so that you know your baby is well cared for.
Good luck!