"Lack of information on Oncology Unit"

For three consecutive weeks my husband has arrived for Chemo, at the appointed time and has waited one and a half to two and a half hours before being called.Today,we arrived tat the Unit at 10-30 as per schedule and waited 90 mins. before the receptionist told us his schedule was changed 3 weeks ago and must have forgotten to inform my husband.We have been furious at the off-hand manner and lack of apology . His drugs did not arrive today until 3pm and he arrived home exhausted,hungry and depressed.