You should have received an automated reply to your email when your claim was submitted.
However, given the time that has elapsed, I suggest that you send Tesco Bank a 'Private Message' to get an update on your dispute.
Please Click on this link and it will take you to a page, 'About Tesco Bank'.
Towards the top right of the page in the blue panel click onto 'Send a Message'.
A new page will open up, 'Create New Message'.
Complete it and send your message securely.
Please include your full name, date of birth and postcode.
You will receive a reply to your private message.
Kind regards, Chris,