Tired of mistreatment at Woolworths

I have been a loyal customer of Woolworths Stores for more than a decade and since then the standard and customer service has deteriorated drasticly as professionalism, respect towards customers is just not there anymore. The staff uses vulgar language especially the management and supervision not to mention the innocent cashiers that are instructed what to do by their superiors. I visited Woolworths in Centurion once to return items i had bought a few hours ago and to my surprise i was interrogated, embarrassed infront of other customers as i was told this is high priced merchandise and we cannot refund. Slip and more details were given to the lady serving but still she refused. I requested to see the manager and painful enough they called a very rude woman from the food market who wasn't even in management to come and embarrass me further, she orderd me to drive back to where i had bought my stuff as woolies cannot remburse R800 to me and she turned her back and left. As i turned away i passed by the market to purchase some groceries and there she was laughing as she shared the ordeal with other workers while packing customer's bags. It was bieng disscussed in vernacular ( Pedi ) as she went on to boast on how she pretended to be manager.... Devastated as i was i went back to where i bought my stuff told the Manager about what happened and i was advised to lay a complaint. I have sent emails to head office but only got one call from Centurion Woolworths informing me that they have recieved the complaint and will keep intouch till today. I urge for immediate action and disciplinary efforts to be amended as some of us are not only customers but respected people due to our lines of business. If this is not rectified soon as customers we will not only stop buying but will take matters into our own hands and will result in injury and maybe even loss of life to particular staff members of Woolworths that mistreat us as customers. Lastly if a company places policies to be followed can they be followed as none of that is done. Eg: CUSTOMER SERVICES department.