Denis insurance not what they used to be

I sent through a claim to Denis with a statement from the dentist, now all of a sudden they have to phone the dentist and confirm, what do they imply? if the statement is legitimate and the dentist still practices what else do they need to confirm. then the dentist secretary made a mistake in confirming the wrong \tooth number\" that was worked on as she is still new at this practice and in this job and now my claim is refuted. why do they have to phone in the first place if the documents clearly have all the information they need. consumers in this country pay for a service and our accounts are debited monthly without me ever skipping a premium but when it comes to claiming there is always a reason not to pay out"