Hunter's Dry bad taste

I have an issues with the "off" taste of Hunter Dry the last 6 weeks or so. Bought a case about 6 weeks ago and the taste was really bad almost rotten and flat. Just bought a case today from Tops in Mnandi and the same problem. I have left messages on Hunter's webpage but no one has even tried to get in contact. Very disappointing. My son also bought 2 x cases from Tops at Mall@55 and same problem. bad taste and very flat.