Former Subway spokesman Jared Fogle allegedly paid a 16-year-old girl $100 (£64) for sex, texts in an affidavit subpoenaed by the FBI revealed.

The woman, who was once a franchisee for the sandwich restaurant, claims she shared the texts and her concerns about Fogle with management at the time of the messages, but was ignored. However, the company states it does not have a record of the woman's complaint, Business Insider reported.

According to the unnamed franchisee's attorney, the FBI subpoenaed his law office for the text messages. In the messages, Fogle asks the woman to put herself up on Craigslist to have sex with other men. Business Insider reported Fogle also asked if he could watch the sex acts and said she could make $500 for each act.

The subpoenaed messages span from January 2008 to June 2008 and were confirmed to be with a phone number registered to a Jared Fogle. The woman's lawyer said the two had a sexual relationship which became uncomfortable as he pushed her to advertise herself on Craigslist.

Fogle also asked the woman to set up a meeting with her underaged cousin in May 2008, the messages revealed.

"When can we find a time for me to talk to your cousin?" Fogle asked on 1 May 2008. He followed up a day later with "Any more news with your cousin?" and "Tell me what u think about when u think of the three of us all together???"

In April of that year, Fogle had asked the woman, "How young would you like? ... Would you wan to have an adventure like that?"

When Fogle asked the woman to advertise herself on Craigslist on 19 June, she responded: "Is this the same website you found that 16 year old girl you that you f****?...I still can't believe you only paid $100 for her."

"It was amazing!!!!" he answered.

Business Insider reported Wendy Osborne, spokeswoman for the FBI's Southern Indiana branch, did not confirm nor deny the FBI had subpoenaed the messages. The age of consent in Indiana is 16 years old.

Subway ended its partnership with Fogle, who had been the restaurant's spokesman for 15 years, on 7 July after his Indiana home was raided by federal and state authorities. The police raid happened months after an employee for Fogle's charitable foundation was arrested on child-pornography charges.

According to the NY Post, a Florida woman who worked as a TV journalist had tipped off federal authorities that Fogle told her he believed "middle school girls are hot". Both Fox59 and CBS reported at the time of the raid that law enforcement sources had claimed the raid was related to a child-pornography investigation.