Apple has no idea where your phone is because they are not tracking their users. Marking a phone as lost gives you the opportunity to add a message that will appear on the phone when found, suspends all payment methods, and blocks any notifications that appear on the phone. The location of the phone is only accessible using Find My with the credentials to your account.
Use the information provided by SravanKrA to help get access to your account and if you still have trouble, you may need to use Account Recovery, which will require a delay.
How to use account recovery when you can’t reset your Apple Account password - Apple Support
Contacting Apple directly is usually done by Phone or Chat, without an email option. You can check here what type of support is available in your region.
Contact Apple Support - Apple Support