There are some actions you should take immediately. These include contacting your bank, changing your passwords and monitoring your accounts for suspicious activity.
We have guidance for you via Ask Herts
https://ask.herts.ac.uk/fraudulent-emails-spam-and-phishing-attacks
You may also find the following links helpful too
www.bbc.co.uk/programmes/articles/15LGJR41sjYSh7X4Bx9sdQs/have-you-been-scammed
or
What to do if you've been scammed - Citizens Advice