I just checked the Prepaid Booster site and it said
"$20 600 Minutes
Canada-Wide Talk Booster7
Any unused minutes, texts, or data will be carried over when you renew your base plan.7
To add Booster add-ons to your prepaid account, you'll need to log into your Self Serve account. "
I purchased the $20 booster and was only credited with 250 minutes on my account instead of the 600 as advertised on the site. ??????