Canceling service with old service provider

[Zyl]

Hi there, 

I have a friend who wants to sign up with Public Mobile She is currently using Telus and wants to port her existing cell no. from Telus to Public Mobile.  I read on the help file here that her exiting cell. no. will be automatically deactivated from Telus as soon as it's ported over.  My question is:  Does she still have to contact Telus to formally close her account and tell them to stop charging her or would her account at Telus be automatically closed and the charges be stopped once the number is ported over?  I do not want her to be charged double from Public Mobile and Telus, her soon-to-be old service provider once her SIM with Public Mobile is activated and her number ported over. 

Thanks  

[NDesai]

@Zyl No, she wont have to contact Telus to notify them. Final bill will be processed as soon as porting is done. However, it doesn't hurt to call in to make sure line is cancelled properly.