You may want to upgrade your plan to get more features and lower overage pricing. When that happens, your billing cycle won't change and we'll prorate the cost of the upgraded plan from when you signed up in the billing cycle. Any overages for the entire billing cycle will be charged at the new plans overage rate.
Here’s what that looks like:
Let's say you are on the Analyze Plan paying monthly, which costs $119 per month plus overages above $20k MTR. 15 days into your billing period, you upgrade to the Grow Plan, which costs $499 per month plus overages above $100k MTR.
You're invoice at the end of the billing period will contain the charge for next months Grow Plan ($499) plus the prorated usage from the last 15 days of the billing cycle after you upgraded ($499 / 15 = $33.27): $532.27.
You won't be charged any overages if your MTR was less than $100k, even for the portion of your billing period while you were on the Analyze Plan. If your MTR was above $100k, all overages would be charged at the Grow Plan rate.