I picked the Free tier for my Certificate Manager account but I still got a bill with charges? What is going on? 

There are 2 parts to Billing: 

1. Support Level

• Basic (Free)
• Team
• Business

You can still get billed via part 2 & 3 even if you set your support/account level to Basic!

2. Authority Services 

• Advanced Authority
• More than 1 DevOps Authority 

3. Endpoint Services

• More than 50 endpoints used across your authorities

Check your invoice and let support know if you have additional questions.