When I spoke to your Rep in Annanagar branch, its ...

When I spoke to your Rep in Annanagar branch, its not fair on her part telling "total fee (15k or 18k) must be paid as one-time" whereas the course of Java (Core & Advanced) (week-ends) takes 4 to 6 months time. Is it true? I am intending to pay 50% now and 50% during the course time, why is it not possible.