For initials, the hr is just going to ask simple questions such as why you are interested to apply for the position and why did you choose to apply in their company. Then there will exams to test your english skills and situational problem handling or solving skills as well as what you would do to provide a good customer service. For the final interview, the hiring manager will be asking you behavioral questions and if you passed that, you will be receiving a job offer for a specific account that fits you. This is the time you will know how much the salary would be If you accept the offer you are going to take the last exam which is the account specific exam, this is where you are going to be responding to an email or chat and take a mock call. If you passed, congrats! You will be offered a job order and will be invited for job contract signing.