Expired beer for sale

I purchased beer at the Tops bottle store in Lambton on the 25th of June as per their promotion of buy a four pack and get another for free. Since its SAB and a special at Tops I did not bother to check the expiry date. After having a few and noticing different tastes we realized that it has already expired. I raised the issue with their call center who said I would receive a call back from them. Mark phoned back and was not interested in the fact that I purchased two cases firstly and secondly confirmed that they have received similar complaints regarding the same incident and store. <br> I was told that a sms voucher would be sent to me for checkers hyper.<br> To date this has not happened and bare in mind that I would only be compensated for one case instead of two?<br> This was on the limited edition Platinum Castle light cans.<br> Maybe SAB feels that they are to important to consider their clients or worry about their complaints?