Non existence of WOOLWORTHS Online customer service

Ordered groceries for click and collect in May and had a dispute with billing over an item. Nobody from online shopping bothered to assist after numerous emails were sent. After a month, someone from customer care called to assist with another order that Woolworths messed up (item went missing because it was delivered to the wrong address and I was still charged for express delivery despite the item arriving 3 weeks late due to their couriers messing up). I was offered assistance during that call with a refund on the item disputed from the grocery order. Was promised a refund within 10 working days - no credit on my account after 10 days. Called customer care and a manager by the name of Donald assured me that I would receive a refund within 4-7 working days - it has been three weeks and I still have no refund or assistance from Woolworths. I have been ordering my groceries from other retailers due to this unsatisfactory service. Competitors are offering more efficient online delivery and collection services and customer care with queries.