Call today several times to cancel appointment for...

Call today several times to cancel appointment for tomorrow. Answering service said 0 callers ahead of me and that wait time was 3 minutes; 11 minutes later I gave up and called again. Same thing. Third time I call it stated that wait time was 5 minutes however I was on hold again for over 10 minutes. They don't want no shows but without them answering the phones how can anyone cancel their appointment. Come one Advance hire people that can multi-task and answer calls in a timely manner. The appointment that needs to be cancel and I won't be calling back to cancel is for B.C.