unfortunately the answer is still the same as when you asked on the other thread. Forum Staff aren't privy to those details and will probably find out when you or another customer post on here of your success.
It's a community forum and we like to help each other, so if/when you do get Wi Fi calling, please let us know.
I wasn't sure if the forums were watched or moderated by VM staff too, so though maybe someone might wade in with an official answer.
Good news is that it seems to have been applied to my handset now, I guess that means the rollout should be happening for all P30 (pro) users.
I also got an EMUI update around the same time, although it was my understanding that this was something that had to be enabled on the network-side rather than in the Huawei software, so not sure if this is a coincidence or not.
Happy to see if I can help anyone else trying to get it working