(1) A person is personally responsible for all the relevant debts of a company if at any time -

(a) in contravention of a disqualification order or disqualification undertaking or in contravention of section 11, 11A, 12A or 12B of this Act he is involved in the management of the company,

(b) as a person who is involved in the management of the company, he acts or is willing to act on instructions given without the leave of the court by a person whom he knows at that time -

(i) to be the subject of a disqualification order made or disqualification undertaking accepted under this Act or under the Company Directors Disqualification (Northern Ireland) Order 2002, or

(ii) to be an undischarged bankrupt, or

(c) as a person who is involved in the management of the company, they act or are willing to act on instructions where -

(i) the instructions are given by a person whom they know at that time to be subject to director disqualification sanctions (within the meaning of section 11A),