That kind of thinking is incredibly short sighted, and you have every right to feel somewhat like a "transaction" rather than a person, in this case. I'm sorry this is occurring. I'd recommend calling your realtor and telling him/her that you're feeling somewhat neglected, now that the "contract" portion is over, and you'd like some assurance from him/her that they're going to be there to address your ongoing questions and concerns... feel free to "dangle that carrot" of ongoing referrals, if you need to.
Hope this helps.
It is not common, nor is good common sense! I would recommend speaking to the manager of your Realtor's office if they aren't responding to you. The escrow company (if you go through an escrow holder, I am not familiar with customs in Minnesota), or the title company might be able to help you, but your realtor should be your liason. Good luck and congratulations on buying a home!