Nigerian lady returns money a guy spent on her, after he came to rant on Twitter about how broke she is

So, there was this wild drama that played out yesterday evening.. A rather hurt 18 year old, took to twitter to blast a Twitter girl he took out on a date. Apparently, Deji expected the lady to say yes to his proposal of being his girlfriend, even after the date. But she gladly said No… In a series of tweets, the guy, known as Deji said:

Then the lady in question, in a quest to prove she’s not broke totaled all the money Deji spent on the date and transferred it to him back.

My question is, How did she get his account number? Btw, Some FBI/CIA’s on Twitter, have dug out a Tweet of Deji where he begged for money for school fees on twitter… See Below: