6% NAR on a 12 % loan

 , pending payment right? Don't think so. So what happened on this 5 day 12% loan?   It appears the borrower repaid 3141201-12 on the 25th Dec under "Finished Payment"

www.mintos.com/en/3141201-12

Loan start date: 22nd Dec
Loan ended date: 25th Dec
Received payment: 27th Dec
Interest rate: 12%
My Investment: €25
Return: €25.02
NAR: 6.01%

Strangely, my other Finko loans repaid prior 25th Dec still under "pending payment "