Cash Converters unfair business practice.

My item expired. I phoned as per arrangement 2 days after expiry date to collect my item that coming Monday. Spoke directly to the new manager. He assured and reassured me that my item is in the save and will be waiting for me Monday. He did not keep his promise and sold it that Sunday before Monday. The contract copy they give customers is so badly printed it is unreadable. I gave the shop 3 weeks to resolve the matter or get my item back. I have decided to contact the owner who sounded like a fair man in the beginning. I sent him all evidence and explained the urgency of the matter. He also decided to treat my matter in his own words " low priorty" and " that I can run to every watchdog" still he has made no attempt to resolve my matter .As a client of 21 year this branch was not only unfair but try to hide the errors of key staff members. What they did is totally against the Consumer Act.