Bad Customer Service, Stock and Online Management

I am an online shopper at woolworths or I was. Since the first order, I have encountered issues. The stock is not available, late deliveries or no deliveries at all without communication, wrong items being delivered, wrong substitutions and the payment process is appalling. I just cancelled my order o ********** 70 on 25-08-2018 due to late delivery by 4 hours. I was told I would be refunded within 48 hours, I still have not been refunded to date. I called on 27th, I was told it will be processed and I called back on the 29th, the refund had not been captured, I was then told it will be captured and processed, it's the 31st the money still has not been paid in. I normally spend over 10 000 Rands at Woolworths Online, however, the customer service and lack of communication and ontime deliveries leaves a lot less to be desired.