Shoprite disgusted

I purchased Rama butter 3 weeks ago which was black when I opened it out was November 2019 butter which was sold in Feb 2020 I was told by the manager it will be sorted out n I'm still waiting for the reply from Unilever which nothing is been done about this matter. This is utter nonsense to treat consumers this way. All they care about is the consumers money not the rotten products they are selling. The quality is going down. Very very angry about their lack of response