The present conundrum reflects a major weakness in SOPA. This is an Act that places great importance on timeliness, as indeed it should, for its raison d’etre is to ensure speedy resolution of payment disputes on an interim basis to ensure that cash, the lifeblood of the construction industry, is kept smoothly flowing. In this way, contractors and subcontractors down the line are able to pay their workers and suppliers so as to ensure successful completion of their projects. Timeliness is so important that breaches of certain deadlines have serious consequences. For example, if a respondent fails to serve a payment response within the time provided in s 11(1) of SOPA, he is, in effect, precluded from raising any defence to the payment claim in a subsequent adjudication because s 15(3) of SOPA prohibits the adjudication response from containing anything not included in the payment response.