transmitting {HEAD ~ a transaction request}, including the total payout amount, to {TAIL ~ a merchant device}; and 
to
transmitting { HEAD ~ a transaction request } , including the total payout amount , to { TAIL ~ a merchant device } ; and
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH