2387581 what happens to MPSJ approved plan but built by non-cidb contractors?

2387581 my cousin engaged an mpsj staff for recommended architect. the mpsj officer facilitated his whole 9 yards until mpsj approval to start extending his wet kitchen. unfortunately, only after handing him the approval she told him that he must appoint a cidb contractor. by this time, 20% of the estimated wet kitchen extension cost was already given to the non-cidb contractor. he pretty much have no choice but to go with that guy!

any advice?