Best Buy - se gat

I purchased a pack of Oxtail on Sunday 14th February from Checkers Vincent (East London). Best Buy, - seems like EVERYTHING is "Best Buy". I put is straight into my deep-freezer after buying it. It was for dinner this evening. After thawing it, and opening the sealed plastic, the smell that came out was nauseating, it was rotting. I noticed the expiry date was 18th Feb (yesterday) however I had it frozen since buying it. Well so much for that, R140 just thrown away. Best Buy - my ****. Checkers Vincent, you have sadly lost a customer.