Подскажите, пожалуйста, HR написал корректные сроки?

Не могу в интернете инфу найти : We will register a short term employment at the police and the decision from them will come in max 15 days, after which you can already enter Estonia, and apply for the living permit. You do have to consider that your Schengen visa must have minimum 10 working days left unused in order to enter Estonia and apply for living permit.