Voucher fun

I received a sms from Woolworths stating that I have a voucher for R150.00 that will expire on 14/11/2021. I received the sms on the 11th October 2021. I went to the store in Northrand Road Boksburg on Saturday 30th October 2021. When I got to the till and tried to redeem the voucher and that is when the fun started. The voucher code kept on coming up as invalid. My goods were re-scanned 3 times and still the same result. The manageress was very helpful to start off with. Eventually she said she will look into it and get back to me on Saturday afternoon. IT IS NOW Friday AND I STILL HAVE TO HEAR FROM HER!!!!!!!!!!!!!! There are numerous emails between Woolworths and myself, even thu I asked them to call me. In one of the emails I was told that the voucher was used on the 10th October, However I only received the voucher on the 11th October. This makes prefect sense to me (me being sarcastic) So this is how Woolworths treat their local Customers. WHAT A JOKE !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Maybe I should just close my Woolworths account that I have had for around 10 years now.