How, where to extend stay in China with only biometric photocopy of passport. Is it possible?

Need to extend permission to stay in China while I wait for a British settlement visa. Whilst waiting my work Z type has run out by a week. My Filipina passport is being processed at the British Border Agency and proving difficult to extract. Where and how can I obtain extended permission whilst not in possession of actual passport, only biometric photocopy. Philippine Consulate seem unwiling to issue emergency travel documents unless I cancel existing passport which will invalidate my settlement visa application. Grateful for any advice! In desperation dreading mounting fines and possible trouble with Chinese authorities. Completely misjudged timing of application.