A 24-year-old woman who says she is the prostitute at the center of a Secret Service scandal gave the most complete account yet of her alleged dispute over payment with an agent that led to revelations about nine Secret Service members bringing prostitutes to their rooms on a presidential business trip to Colombia.

In an interview on Caracol News in Cartagena, Dania Suarez said she and some girlfriends had met for a drink April 11 when they encountered an American man drinking vodka in a Cartagena bar with other Americans. Suarez said in the interview that she agreed to go back to the agent’s hotel room — not realizing he worked for the Secret Service — and they negotiated ahead of time that he would pay her what she called a “little gift” of $800.

When she asked for the money the next morning, Suarez said, the agent’s pleasant personality from the night before had disappeared and he told her : “Let’s go, b—-. I’m not going to pay you.”

She said he pushed her out of his room and into the hallway.

Suarez’s identity could not be independently verified, but many details of her account appeared to be consistent with versions shared with The Washington Post by people briefed on the incident or involved in the probe.

INTERVIEW RAISES NEW QUESTIONS

The interview raised new questions about the conduct of the Secret Service personnel who were in Cartagena preparing for President Obama’s arrival for an international summit, and it drew reaction from congressional figures.

Rep. Peter King, R-N.Y., chairman of the House Committee on Homeland Security, said in a statement Friday that he is concerned that the agency has yet to interview two of the 12 women, including Suarez, who reportedly spent the night with Secret Service employees.

“I have asked the Secret Service for an explanation of how they have failed to find this woman when the news media seems to have no trouble doing so,” King said.

Secret Service spokesman Edwin Donovan said the agency has conducted a “comprehensive” investigation that included more than 200 interviews of all 135 Secret Service personnel on the trip, Colombia law enforcement officials, hotel employees and several of the women involved. He said the investigation is complete, but added that the agency would examine any additional information.

“If she makes herself available, she’ll be interviewed,” Donovan said of Suarez.

Suarez was reported to have left her home in Cartagena and gone into hiding to avoid further media scrutiny.

This week, the Secret Service delivered an update on its investigation to King and other Capitol Hill lawmakers. The agency has chosen to dismiss nine of the 12 employees implicated in the misconduct, while clearing three of serious misbehavior. King said he will ask Director Mark Sullivan for additional information in light of Suarez’s interview and because the agency has now informed him that one of the Secret Service personnel failed a polygraph test.

Hundreds of Secret Service agents were in Cartagena for work, preparing for Obama’s arrival there for an international summit on economic issues. But several were partying hard Wednesday night Thursday morning before they had to report for assignments in the beach resort town, where prostitution is legal.

FOR HER, THE NIGHT WAS BUSINESS

Suarez said that night had been a lot of fun, with the American men she and her friend had met drinking bottle after bottle of vodka. But for her, it was also business. When the agent asked her to come to his room, she said: “I’ll go with you if you give me a little gift. At the end I said the little gift is $800.”

She described his response this way: “Okay, baby. Vamonos.”

All that changed Thursday morning, when her client ejected her from the room.

But in the hallway, the client’s friends didn’t seem to care that Suarez had not been paid. She said she sought help from a local police officer, who was supportive, and then said she was going to look for an English-speaking police officer to get the agent to answer the door. She said the agent’s fellow male friends who were in the hallway then begged her not to.

“Please, please. No police, no police,” Suarez said they begged.

Suarez said the men hustled to pool together some money, gave her $250 and she agreed to leave.

A complaint by the prostitute to the Colombian national police led to a call to the U.S. Embassy.

It wasn’t for two more days before the story exploded on international news that Suarez said she realized who her client worked for.