Praise be to Allah, the Lord of the Worlds; and may His blessings and peace be upon our Prophet Muhammad and upon all his Family and Companions.
It is unlawful for you to use this company’s machines and equipment unless the people in charge of this company permit you to do so, or unless the employees are accustomed to use such facilities without being against the rules of the company. This prohibition covers any advantage you get from it for yourself or for others regardless of whether this affects your job or not because you are entrusted with the property of the company that is under your reach.
So, you should hasten to repent for what you did and ask forgiveness from the manager of the company. If the latter forgives you that’s good, otherwise you should pay the value of what you took.
As for what your colleagues who indulge in (Bingo…etc) it is unlawful and you should call them to Islam. This should be done first by applying Islam in your deeds and words and in your good behaviour.
Allah reserves a great reward for anyone who succeeds to have a non-Muslim enter Islam on his/her hand.
May Allah guide us and you to what pleases Him.
Allah knows best.