After reading the relevant Australian thread, and also checking my IMS service status (which showed LTE as Unavailable, even though the Phone Info shows it as provisioned), I am uncertain whether I have LTE even if I’ve enabled it in settings, and I don’t believe that my provider will assist me with this, so I suppose I will probably have to switch to another phone (or to Telia, which is another provider that they say will continue to support the old networks for another year to give people more time). 
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