This has happened to me several times
Their computer allegedly has something that pops up and tells them except it never bloody does!!!
So this morning, a dr prescribed me a new antibiotic (over the phone). When I went to look it up (as I always do because they never check) it was clearly contra-indicated!
So I called the rabid rottweiler receptionist and explained and gto 5 mins of "ooh no the system would tell the doctor and anyway he would KNOW" until I lost patience and shouted at her to get him to call me
He has just called and apologised profusely (the system shoudl ahve warned me!) and prescribed something else...