Apparently, this is a familiar scam where a fraudster will send money to your FINTECH bank account and call you through the phone number pretending that he made a wrong transfer then afterwards proceed to send you another account details for you to return the money.
I had a similar experience where someone sent me N600 to my Opay, and immediately he started calling me on WhatsApp, phone call and sending me messages that he mistakenly sent me N600 and that I should please refund the money back, when I asked him to forward his account number to my DM on WhatsApp, instead, he forwarded a different account number entirely that didn't match the name of the previous account he had use to send me the N600. It was from that moment I suspected a foul play. To cut the long story short, I insisted he send the same account number he used to send the N600 but he refused and I blocked him ASAP.
We already know the motive of this which is when the person they defrauded wants to track the account that was used, it will show your name and phone number. We advised that you shouldn't make the mistake of sending the money to a different account number different from the one that was used to send money to your account.
Honestly, I didn't know that guy had such a motive but thankgod,I didn't agree to his request otherwise I would have been in a big trouble in the future. People could make a mistake while trying to send money to someone, but that guy case wasn't a mistake, he intentionally sent me that money and pretended it was a mistake. Na God save me,I for don't enta problem whey I no bin no anything about.