Cornwall SA Beverages - Complaint Egnored

Worst service ever! 3 Months ago, I bought MoerKoffie from a liquer shop in Hartenbos. With my arrival home, I opened the bottle and it was sour. Numerous attempts have been made to contact Cornwell SA, situated in Johannesburg. With absoluut disgusting results. I have meen called "sour" and a "time waster" on the phone aswell. The personel eg. Keagen the head of sales and Shelly, aparently the manager was extremely rude this morning as I tried to dispute the situation. Now I am wondering, does Cornwell SA sweep all their durty laundry under the floor, who else have the same problem?