EDIT: found it: https://www.revolut.com/help/profile/i-want-to-terminate-my-...
EDIT2: What a shit show, I have been trying to delete my account for more than 30 minutes now. When you chat through the app you are first connected to a bot which you need to tell you want to talk to a human, after waiting a while you finally get a human which then tells you to authenticate your self by signing into the app!? So thinking something must be borked with the app I close it and go back in only to find out I am back at the end of the queue for support chat which is now "experiencing high volumes"...
EDIT3: I still have an account :( the wait is 1 hour now... I can't find any emails address to send me account termination to. WTF
EDIT4: Still trying to find where to send my termination email or GDPR complaint (where do I find who the data protection officer is?). I Found that the address listed on their website is not the same as the one in the UK company registry: https://beta.companieshouse.gov.uk/company/08804411
EDIT5: Crunchbase has "support@revolut.com" listed so I will give that a try.
EDIT6: "Your message wasn't delivered to support@revolut.com because the address couldn't be found, or is unable to receive mail." :(