Woolworths Online delivers incorrect product- 3 1/2 weeks later still cant get it sorted

Purchased 4 items from Woolworths Online on 19 August; received incorrect items on 22 August. I have emailed 7 times and phoned 3 times. In spite of a 'Customer Service Ambassador' phone and email me on 7 September - I immediately sent the necessary email chains, barcodes - once again nothing. What does one do?? Cant get the necessary assistance from Woolworths Online! Essentially they do not respond.,