He was drawing on this line of credit, which he knew he was legally obligated to pay back, without ever intending to pay it back. That sure seems like fraud to me.
There is a difference between taking out a loan with the intention of paying it back, but not being able to pay it back due to some circumstance (you lost your job, had a medical emergency, business failed, or something like that), and taking out a loan without ever intending to pay it back. One is a civil breach of contract; the other (at least in the US) is criminal fraud.