Ayakpa was one of 24 suspects paraded by the Federal Capital Territory (FCT) Police Command for various offences.
She reportedly confessed that she conspired with one Fidelis Ikule, 36, to stage the kidnap.
Ayakpa, a hairstylist, said she did it because her business was no longer doing well due to the coronavirus pandemic, adding that she also wanted to test if her sister really loved her.
Ayakpa said her sister had turned down her request for money.
Ayakpa and her accomplice were arrested after the police tracked the calls they were making for the ransom to Ikules house in Mashafa Village, Mpape, Abuja, where they were holing up.
Ayakpa, from Benue State, said she left home on July 20, 2020 and called her sister telling her she had been kidnapped and her abductors demanded N20,000 to free her.
Commissioner of Police Bala Ciroma said other suspects were arrested for armed robbery, cultism, car theft and fraud.