In case of loss of the OEC/e-receipt/MTEC, can a WOL/BM apply for a replacement of the lost POEA exit clearances?

No, there shall be no re-issuance for lost e-receipt / OEC/ MTEC. The respective processing units shall instead issue a certification of the particulars of the processed exit clearance or a certified true copy thereof. Said certification shall be presented to the Bureau of Immigration, Philippine Tourism Authority and Airport Terminal Fee counter for travel exit purpose.

Source: POEA