Woolworths Online Data is not secure.

My online Woolworths account displayed a totally unknown address when I logged in on Wednesday. Apparently these changes can only be made by logging in to my account, which I did not do. No uses my laptop but me, and it very secure (fingerprint etc) The response from WW was a polite phone call on Thursday, saying they had received my email from the day before and couldn't understand it. It took another phone call to convince them to escalate it to the IT department as my bank details and all other personal details are on the site. I have been notified that the (useless) IT team have not yet responded and it is 6.30pm on Saturday. I urge everyone who use Woolworths Online to be aware that it is not secure.