@Parmentier *****
I'm seeing from many responses here that the visa cannot be cancelled unless there is an extension of stay or work permit attached to it. Are you sure it can be cancelled? And if so, is my passport going to need to be present? Because I'm not going to agree to that when it's just going to force me out of the country sooner to start a new tourist visa. And if my passport does not need to be present for them to cancel it, is it a costly and timely process that my employer is going to be unlikely to pursue?