[Donlad Tee]

Hii,
I'm living in Minnesota and I have two kind of insurance, one by my school and the other is the state care one. I went to dentist at my school and made composite filling which a little expensive that regular Amalgam. After done, the office clerk asked weather if I wanted to pay my share(about $2xx )or they going to send the bill later. I told here that I have another insurance which state and I would like to use that instead of the school,thinking that my share would be less if used the state insurance. She said OK and she made some photo copies of my state insurance card. And she gave me paper to sign that whatever left unpaid by my state insurance I'm going to to pay that and the amount of the total cost. However, I realized that they rose up the cost of treatment when I showed my state insurance.
Since that amount I signed on paper was high and I'm not sure how much state insurance going to cover. I'm don't feel comfortable with that and I'm afraid that whatever uncovered I will have to pay that even if it's more than $2xx with my school plan or I might have some legal issues on the future.Am fine with that , and what should I do.

Thanks,