"Getting in touch"

I missed a call, which showed as the hospital switchboard, no message left and no further call.  When I tried to reach the clinic I believe it was from (dental/maxillofacial), only the switchboard number on their website.  They would not help or give any way to get to the clinic itself and simply said they'll call again.  So frustrating and so time consuming.  I still don't know what is happening.   Grrrr