"Cancelled my appointment and I have to wait for..."

I had booked an appointment with a physio. That wasn't easy either as the receptionists at Physio department couldn't care less! The appointment was already more than a month in advance as the physio was really busy...Then out of no where i receive a voicemail that my appointment has been cancelled because there has been a confusion :S Seriously! I call back within 15 minutes only to find out that slot is gone and I have to wait for another week to get an appointment. Appalling service really!