Hi

Kindly, could you clarify your question in details so we could help you legally better with pleasure.

All what you have mentioned is considered against the law on the part of the worker, stating that the worker cannot cancel the visa alone and who owns this right is the sponsor.
Thus, the escape of the worker from his work and reporting him is an escape in the labor office. Here, there is no responsibility on you, and the procedures remain for the labor office alone, and it is the one who decides to ban and the duration.
On the other hand, if the worker work for another employer with the same visa, this matter is also against the law and has responsibilities on the employer.
Because of this problem, the Labor Office may decide to ban him permanently and deport it after the fingerprinting.
So you can go to the labor office and indicate all these data to follow the procedures by the competent authority