If you think that someone has gained unauthorised access to your login details, the best thing to do is reset your PIN or enable Face ID to sign in, if you haven't already.
However, if you lost access to your phone/phone number, please get in touch with us as soon as you can. We'll need to check if it's really you and then we can figure out the best way to keep your account secure.
There are a few different ways to get in touch with us in this case, so just reach out and we'll help you sort it out! https://app.intercom.com/a/apps/dv46afen/articles/articles/7173050/show