Incorrectly coded items

On the 22nd of September I purchased ribs from Woolworths Food - Honeydew Ridge. When I got to the office and checked my till slip, I never received the 20% discount as advertised, nor the additional 5% for using my Woollies card. I sent an email to customer services as this was not my first experience of such kind at this store. Gafsa Schroeder rep**** immediately requesting my contact number and upon return email advised it has been referred to the Store Manager. Two weeks later, three emails later and a phone call, I still haven't received any feedback