The priest's contact information was what Lin Miao wanted, but he didn't get it to call him.
Rather, it's to make a note in advance, so when the priest calls him, he knows who's calling.
Because people have already started asking where the Sixth Street Gang's new equipment came from, as there hasn't been anything like it on the market before.
The wind was brought by the old captain, and Lin Miao would naturally let him blow the wind back.
Let the old captain subtly reveal to the priest Sebastian that the equipment was funneled into Night City through his channels, and the priest would naturally come to find him.
Though this matter has little to do with the priest, he has quite the ties with the Valentino Gang, known as the 'Cannon Priest' in his youth, playing as a defender on the team.
In the various local factions of Haywood, he has considerable prestige.
He might not get the locals to believe in Jesus, but if he called them to fight, they'd definitely show up.
