I need to reactivate my existing plan that was temporarily suspended by me

[Handy1]

@Winpet  You can also 611 if you know the 4 digit PIN .Another option is to get payment vouchers and load them 611 and no PIN needed 

[hairbag1]

@Winpet 

as long as you didn't let the Suspended account go past 90 days, you can reactivate the account. Log in to your account > Profile ...there you can Reactivate.

[softech]

@Winpet   login to My Account first, unsuspend first if you have suspended your service earlier by Lost/Stolen

If you just suspended by disabled Autopay, then make a manual payment. Click "Pay now and resume services" and follow the steps to pay

You might want to enable Autopay again in Payment page

https://myaccount.publicmobile.ca/en/account/my-payment/manage-subscription