Q: My billing info changed ....

I recently received an email from Apple letting me know that it was having an issue with my card and this is the verbiage of the email I received:

Dear Nicholas

On 09/24/2015, we attempted to charge your account for your 20 GB iCloud storage plan, but there is still a problem with your payment information.

Your account will be downgraded to the free 5 GB storage plan if we cannot successfully renew your subscription.

Follow the instructions below to update your billing information: 1. Go to Settings and tap iCloud. 2. Tap your name. 3. Tap Payment and follow the prompts. You can also update your billing information on a Mac or PC.

The iCloud Team

Once I got the email I followed the directions and updated my billing info... but when I looked on my phone it seems as tho they downgraded me to the 5GB.  Will that automatically change back now that I updated my billing or will I have to go in and manually purchase more storage?

Thanks