B2D - most 'bosses' are not like you and you know that. Your word 'voluntarily' shows your respect for your workers (which is to be praised).

The OP seems to have more serious issues to be able to break free from his sponsor - and with children he needs to make sure to get back to the UK for the new school term, spend Christmas at home and and and.... Things which are very important to people like him and many others. Sometimes people just snap when the family is not happy - and even 1 week can be like HELL if you don't want to be where you are.