Ratios are the amount of children she is allowed to have- sounds like she wants to keep her numbers low because of her son. Totally understandable. You shouldn't be worried about what she does for other families. Of course she has every right to be upset with you. You are being snoopy with what others are getting then even after her giving you your letter you have the nerve now to ask to pay for only the days you use - ummmmmm ya that is rude imo. She is offering you full-time if you need flexible care- she needs to make a living too.