Thank you for reaching out to the Constant Contact Community. It's my pleasure to assist you today.
I'm sorry that you have seen your billing increase. Unfortunately, for account security reasons, we can't discuss your specific billing in the Community. However, in most cases an increase in your billing is due to an increase in the amount of contacts stored in your account or another change to your plan type. Here is a brief breakdown of how billing works. If you still have further questions about the billing on your specific account you will need to reach out to our Billing Team so they can take a look and explain it further.
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