Joselito Zapanta was sentenced to death after being convicted of the 2009 death of his landlord in a rent dispute. Zapanta, a tile worker, said he killed the landlord in self defense.
The Saudi government gave Zapanta a three-month reprieve from execution on March 13 to give his family time to raise the money demanded by the victim's relatives.
The deadline has now been extended to Nov. 3.
In issuing the call for donations, presidential spokesman Edwin Lacierda said only $136,540 had been raised.
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