Cannot opt out of Unsolicited Marketing Push-Notification Messages

I have been trying to opt-out of marketing and promotional push-notifications from the Woolworths app for ages now.

I have "unsubscribed" and "opted out" of all marketing communications on their website (from my profile), yet they continue to send marketing push notifications on my ipad. I also can't switch off notifications from the Woolworths App as I need it for their Dash delivery services - to chat with my shopper or to view delivery updates.

Every time I bring up this issue, Woolworths consultants tell me to go on my profile and opt-out of communications (which I did ages ago) or to switch off all notifications on my app (which makes the app obsolete).

This contravenes the South African Consumer Protection Act of being able to opt-out of marketing communications. Even the Checkers 60Sixty app allows you to opt out of marketing messages.