No you need one account for 1 sim card and 1 different email for each. But you can pay with the same credit card for the 3. I guess that is a limitation with Public mobile.
Yes, you can activate with voucher, just a bit more steps:Open ticket with PM support by direct message them:https://productioncommunity.publicmobile.ca/t5/notes/composepage/note-to-user-id/22437 **Monitor your Community inbox (envelope icon on the ...
Yes, it will allow you to port your number - https://www.publicmobile.ca/en/on/get-help/articles/transfer-your-number#:~:text=Transferring%20your%20phone%20number%20happens,to%20transfer%20to%20Public%20Mobile
