Poor service, no response

I purchased 2 clay statues online in December. Upon arrival 1 was broken. I took it back to the Alberton store who didn't have stock to exchange it so they gave me a gift voucher. When I went online to purchase another one it was again required that i again pay delivery. I emailed Woolworths and was promised a R50 off voucher. To date I have not received any voucher, feedback or even a courtesy call. Shocking service Woolworths.