As respects relevant contracts (within the meaning of section 17 of the Finance Act, 1970) entered into on or after the passing of this Act, section 17 (inserted by the Finance Act, 1976) of the Finance Act, 1970, is hereby amended -
(a) in subsection (1), by the insertion of the following proviso to the definition of "relevant contract":
"Provided that a separate relevant contract shall be deemed to exist between the principal and each individual member of a gang or group of persons, including a partnership in respect of which the principal has not received a relevant payments card, where relevant operations are performed collectively by the gang or group, notwithstanding that any payment or part of a payment in respect of such relevant operations is made by the principal to one or more of the gang or group or to some other person;",
(b) in subsection (2), by the insertion after "the principal makes a payment" of "or is deemed to make a payment pursuant to subsection (2A)",
(c) b