@Papi
Use the search function for Australia and you'll find loads of posts with suggestions to fix.
Make sure you have 4g calling enabled and turn off wifi seems to work best but do search the posts for speed.
I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.
Please select the post that helped you best and mark as the solution. This helps other members in resolving their issues faster. Thank you.
