Poor service: Online shopping/Dash service

Woolworths online service has been extremely disappointing. I ordered groceries that were never delivered because the driver contacted me using my old number, despite my updated contact information on the Woolies app. As a result, my order was returned. I've been trying to get a refund for almost a month, but they take one to two weeks to respond to my emails. They asked for my bank statement and ID to process the refund, but nothing happened. A week later, they emailed me saying they were having issues with my bank and suggested a voucher instead. I agreed, but each time I reply, it takes another week for them to respond. Since trying Woolies Dash, I've experienced similar issues twice. The service is poor, and Checkers Sixty offers much better service. It's very disappointing that Woolworths online is so terrible.