Is my business LLC or Partnership?

My husband and his friend are starting a new small business. We filed a SS4 form as a LLC, but the defaulted us to a partnership. We tried to open a checking account in the companys name today and they told us we need a Certificate of Limited Liability Co. So what do i do, should we be getting that in the mail or do i tell the bank its a partnership, when LLC is in the company name? im so confused!!!