Drive-Thru RT-PCR Test at Greenhills @ Greenhills / It’s better to be safe than sorry! Greenhills Mall offers drive-thru RT-PCR swab tests for only P2,700! Operating hours: 10AM – 6PM, Monday – Saturday at the 3/F OSquare 2 Parking Area! Results may be released within 72 hours. Drive-by now and get yourself tested!