sudden bill payment mail

Not all services have a "free tier" https://aws.amazon.com/free/?all-free-tier

If you think that you used only services with "free tier", try the following:

1. Check Account Details: Log into your account and check the account details or billing section to see if there are any charges listed and what they are for.

2. Contact Customer Support: Reach out to the customer support of the service for which you received the bill. Provide them with all relevant information (e.g., account details, date of sign-up, details of the received bill) and explain that you were offered a 12-month free period. Ask them to clarify why you were charged and request correction if it's an error.

3. Gather Evidence: If you have any emails or screenshots that show the offer of a "free for 12 months," have them ready to provide as evidence when discussing the situation with customer support.