selling pork marked as lamb?

i was recently in your shoprite store on friday evening. whilst shopping for meat for my fathers birthday, i came across loads of pork marked as lamb? i had seen this problem on monday in the store as well, i mentioned it to the staff then and it seems they dont care because when told them on friday evening they just gave me bad attitude and i was the stupid one!?!?!?! how can you operate like this? i think this is utterly ridiculous!!! and unless something is done about this i wont be going back there... needless to say, what if it was a person that wasnt allowed to consume pork? what then? then whos the stupid one with a lawsuit on their hands? over and above this, the manager was called tosee what the problem is, the staff in the butchery showed who was the person complaining, he didnt do a thing when he saw me.... is this how your working environment is? to not attend to people who have complaints? or are your staff under trained? or just catering for certain ethnic groups?