As any Instrumental Approach at the MDA/DA without runway in sight the cockpit crew should perform a go around.
An RNAV (RNP) approach is still a NON Precision Approach and according to Airbus Limitations and Standarize Procedures, Pilots should disconnect the autopilot not lower than MDA-50 ft or the minimum autopilot use for an RNP approach is 250 ft AGL.
Even for a CAT II approach without autoland should be disconnected not below than 80 ft AGL.
Without CAT II/III displayed in the FMA the minimum autopilot disconnection altitude should be not below than 160 ft.
Unless the TK A330 is an special one....those are the limitations.