Hello there.
Welcome to the Three Community.
Oh that's quite strange. The issue that was impacting calls last week was fully resolved. If you're still having calling issues, it's likely due to something else.
I'd recommend restarting the phone if you haven't done so already, and if that hasn't helped, nest steps would be to go into the reset menu on your phone and complete a reset of the Network settings. The phone will restart after that and hopefully you'll be back up and running normally again.
Pete.
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