Delta Hospital Network query

After 2 x 25 minute calls, I still do not have an answer to a very simple question regarding the Exception Hospitals listed on the Delta Hospital Network. In both calls the agents just decided to terminate the calls because I insisted on a response to my query to which both were unable to provide a satisfactory response. Both were also very reluctant to escalate the call. I subsequently raised a complaint ( ********** 129) on the website about this with no concrete response, other than asking for more information.