Of course! Upgrading to a higher plan or switching from monthly to annual is self-serve and takes effect right away.
To upgrade your plan:
Sign in to your Dashboard.
Under the Buzzly Number you want to change, choose Plan & Usage.
Pick the plan you'd like and confirm. Your new features are available immediately.
All upgrades are pro-rated. For monthly plans, the prorated charge appears on your next monthly invoice. For annual plans, you'll be invoiced for the difference at the time of the upgrade.