Need help accessing Visual Voicemail on Samsung S23 Ultra (US Unlocked fw)

Hmm, that's something that you may need to speak directly with our Mobility tech support team about. They'll be able to confirm that you've got the correct VVM code on your account, which could be the issue. It's also possible that if the device itself isn't Canadian there may be a compatibility issue as well, but not entirely sure. There is a thread here that may be of use: https://us.community.samsung.com/t5/Galaxy-S22/Galaxy-s22-ultra-no-visual-voicemail/td-p/2226279

Visit the nearest TELUS store or reach out to our team at 1-866-558-2273 and they can dig in with you!