Upon {HEAD ~ successful completion} of {TAIL ~ the escrow period}, the payment amount is directly credited to the sellers payment card account 
of
Upon { HEAD ~ successful completion } of { TAIL ~ the escrow period } , the payment amount is directly credited to the sellers payment card account
OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH