Hello @muffinhead I can totally relate to you. I had that issue yesterday.
Somebody recommended to me to call a porting team from Telus, Koodo, Mobile. Not sure, but I transferred from Koodo. Let me know if you want their phone number to call.
They were able to confirm with me that the porting was completed. However, I needed to open a ticket with the @CS_Agent in order to get a Public Mobile Technical team ticket or something to fix things on their end so that I could get service working with Public Mobile.
Like you I got a text from my previous provider to which I replied Yes. I got an email saying that I would receive one last bill and that my services were cancelled with them. I lost service on my phone. When that happened, I shut down the phone, removed the SIM and put in the New One. The service didn't work until I got help from @CS_Agent
After typing "Yes" to port out message, am I supposed to receive a port out confirmation message?
I did not get one, and it's been a while.
After you type "yes", turn off your phone, remove the old sim card, insert new PM sim card and reboot your phone. make sure your phone APN setting is right .