I am a home childcare provider....my suggestion would be to give it more time. In my experience, ALL children new to a daycare need time, especially the tiny's. Its an adjustmnet for everyone and can take some time.
Personally I would not have likely called a parent to get their child as yours did. Having 2 new infants in care is common in daycare and happens every year or 2 when the spaces become available. Its tough, but workable and we all get thru it just fine for the most part!. Hopefully your caregiver has experience with 2 small infants....if they are newer to daycare, I would certainly ask.
New babies need time to adjust to someone caring for them who feels different, sounds different and smells different.They whole group dynamic gets thrown for a loop with any addition, especially very young and needy infants..and 2 at once obviously creates an even crazier situation for all. Likely it is more chaotic for everyone there right now...adjusting to the demands of the infants and still accomodating any other children in care. Sometimes the first month or so is all about meeting needs and just getting thru it and getting to know everyone and getting in sync. In most cases, it does all get easier and smoother.
If you have the patience...and good communication with the provider, I suggest more time.
Best of luck to all of you!