Hers is an extreme case, but some undergraduates, too, face difficulties budgeting their expenses for the first time away from home.
Ms Katie Jones, international officer for South-east Asian students at Wales' Cardiff University, says that problems arise when some students who are used to a certain standard of living at home replicate it overseas, where living costs can be higher.
She says: "Coming from the supported environment of home, young people may not have had to pay their own bills or buy their own food before. This, coupled with a new and busy social life, means that things can go awry more quickly than they may think."
Mr Jeyaseelan was shocked to discover how much he had spent in a chance conversation about finances with a friend, who reacted with "mild horror".
He reined in his spending, a decision that owed more to peer pressure than to any protestations from his parents. His father was then a director at an aviation services firm and his mother was a teacher.
Mr Jeyaseelan, who has an older brother, says his parents never complained that he overspent. "They wanted me to be comfortable and to find my way in the sense of doing something I liked to study."
He received only a stern telling-off from his dad when he excitedly recounted an all-nighter at the Treasury Casino in Brisbane, where he lost about A$100 at the roulette table. He never gambled there again.
To save money, he started buying more supermarket house brands and food from the canteen.
When he took a postgraduate degree a few years later at the University of Melbourne, he became even thriftier after mixing with flatmates and students from Australia, Japan, China and India.
"They were very focused on their studies and always looking for ways to save money by living simply and cooking their own meals most of the time," he says.
He took up part-time jobs like these friends did, working stints as a waiter and a gardener.
Unlike Mr Jeyaseelan, Mr Gabriel Ho, 23, initially found it "pretty smooth" managing a substantial budget at the University of Washington in the United States.
The third-year undergraduate in an informatics degree course usually got about US$15,000 transferred by his parents into his bank account every quarter to cover his school fees and living expenses.
"It made me more aware of how much life costs, such as paying rent and utilities. I liked that my folks gave me a sum and it was up to me. It was like a challenge. At the back of the mind, you know that they're not going to let you fall," he says.
However, at the end of 2014, his second year in the university, his father, then a director in the financial information industry, was retrenched. "It was a big realisation that money was a luxury," says Mr Ho, an only child.
His parents reassured him that they had already budgeted for his entire university education, but he cut back on expenses, sometimes eating mainly sandwiches for a few days at a time.
He also started doing part-time work, holding two jobs at one point, as an IT assistant and a freelance database consultant. He supported himself partially and asked his parents to transfer about US$3,000 less to his account each quarter.
His mother, Mrs Lynette Ho, 57, a housewife with a part-time administrative job, says studying in the US has helped her son "in terms of independence and maturity".
His father John Ho, 54, got a job as a director at a futures exchange about three months after he was laid off.
Some university students seem more than comfortable with managing a big budget.
Over two years, Ms Claudia Tan Li Yi's parents, dental technicians who run their own dental laboratory, transferred about A$140,000 to her.
During her commerce degree course at the University of Melbourne from 2013 to 2014, she used some of this money to set up a A$15,000 term deposit to earn more interest.
Ms Tan, now a 24-year-old financial consultant in the insurance industry, says: "I like to see money grow."
The second of three children, she used to save up to buy Christmas presents for her family as a child and occasionally felt competitive with her younger brother when it came to saving money.
Although she travelled to Tasmania, Sydney and other parts of Australia on her parents' money as a student, she also controlled her spending.
She kept big-ticket expenditures such as rent and tuition fees in one account that she left alone. By drawing out smaller sums from what her parents gave her, of between A$200 and A$1,000 at a time, from a separate account for day-to-day expenses, she "felt the pinch when it got depleted".
She felt a sense of responsibility to be entrusted with these funds. "It was hard-earned money for our education. We are a form of investment to our parents," she says.