Somebody sent me a link to "claim" my restaurant. Is that real?

It is, if a partner or reseller set the account up for you — that is the invite that hands it over, and until you accept it the restaurant cannot take a single order, so there is nothing to be gained by anyone sitting on it. Accepting is where YOU choose your password: nobody else ever sets it, and there is no screen anywhere on their side that could. From that moment their access to your dashboard ends permanently, and Plan & billing and staff logins were never open to them at any point. What they keep is the billing relationship — they are who you pay. If you were expecting no such thing from anybody, do not accept it; message us and we will check it.