False reporting on ITC

I have a loan with and this month is my last installment. Got my credit report yesterday and according to it according to Capfin I last paid last year in March. This is false reporting. Phoned their customer service and according to the lady I spoke to my report can only be updated after the account is closed. Again spoke to another lady this morning. Told her my complaint and all she could say is I don't understand why. I asked her if she could forward my complaint to a relevant person and she kept repeating that she didn't want doesn't understand why.

This is truly unfair cos now based on their report I won't be able to buy that house I was going interested and in.