Well if someone makes a twitter account and tells them the login email (he made another tweet), that usually only YOU should know, the guy who works at jagexsupport is gonna check the account because there is good chance its the ocial owner of the rs account.
and then he sees that there is actually someone playing from a completly different country than usual on so he locks it and the actual owner can just unlock it in 10 minutes.
Cant really blame jagex support tbh