WAL-MART PHARMACY - MISSISSAUGA, ON

On two occasions I was told my prescription would be ready by a certain hour; only to arrive and then be told that my prescription was ordered and may be available the following day. I understand that a drug may not be in stock and additional time may be required to retrieve a prescription, however I am incredibly annoyed at the pharmacy staff for wasting my time on numerous occasions. Very poor service. Pharmacy staff require additional training. Zero star rating.