PIANIST THROWN IN PEN FOR HARPING

A meek but persistent concert pianist was tossed in jail after repeatedly demanding a refund from Priceline.com .

In a bizarre tale of "extreme customer service," Juilliard-trained Ronnie Segev sued Priceline earlier this month alleging the corporate giant billed him for a $953 plane ticket he never purchased, then had its top lawyer call the cops after he phoned 215 times to ask for his money back.

Segev, who has played Carnegie Hall, was handcuffed and hauled out of his Hell's Kitchen apartment building early one morning in May.

The cops hit him with 215 counts of harassment — one for each call he made to Connecticut-based Priceline from January until his arrest.

"I tried to talk to them," he said, shaking his head. "Now I get the chills every time I see a Priceline commercial."

A judge later dismissed the charges, but not before Segev spent 40 hours in a Manhattan holding cell with hardened criminals who laughed at him, threatened him and tried to steal his fancy watch and sneakers.