Shockingly bad experience with their online & telephone 'customer services'.

Since Woolworth 'upgraded' their loyalty cards and programme, I have had constant problems with the app. Despite numerous attempts to get support and a fix at in-store customer services, no one seems equipped to assist. I then resorted to their telephone helpline - couldn't get through to a human being, despite trying 3 times. Lastly, I pinged them on social media (X) and they rep**** quickly. They suggested some basic measures which didn't work, then promised an escalation to tech support. That was 10 days ago. Tech Support made 1 attempt to call me, at a time when I couldn't take the call - they emailed me and I responded at once, inviting them to call back. Despite this and several more attempts to contact them via X, nothing. My rewards are effectively 'frozen' in the app, which doesn't work. This is really shabby and not worthy of the title "customer service". For the prices Woolworth charges, they should sort out their support systems. I'm not impressed.