Linkedin has poor service

I love in South Africa, and someone has been locking into my account from the USA. I Use LinkedIn to look for jobs but they restricted my account without any help I have verified my account over 5 times , still they don't uplift the restrictions saying I have violated my account but I haven't log in. It seems like someone is logging from New Zealand , poor customer service, poor security. Bad app please try something else because they are very bad