Im over limit on a base and trying to upgrade to Business Plan. I cant get a response from support on this item. 

The system is only giving me annual options, not monthly, which we are currently on. Ive attached a screenshot. 

The system shows monthly price before entering this page, but once in, it seems its only annual options. I appreciate anyone's help on this. A little confusing and frustrating. I need to upgrade ASAP for my team but dont want to be suprised with a 5K+ bill next month.