you guys can think in this way
you owe 50k ptptn loan, 15 years repayment period under 1% contract
monthly repayment : 50,000 + 5,000 = 55,000/15/12 = 305.56 | ujrah 27.78 | principal 277.78
you kena toto 50k, you are in dilemma to settle the loan or use it on other things
currently got 15% rebates if do full settlement
total settlement : 55,000 x 85% = 46.750
you save : 8250
meaning you earn back only 45.83 (8250/12/15) every month for 15 years from that rebates, really that nice meh the 15%??
you put 50k into FD which generate 4% annually for 15 years
total gain after 15 years
total principal : 50,000
interest amount : 40,047.18
total maturity value : 90047.18
of course you still need to pay during the 15 years period to ptptn, if you pay promptly @ 305.56
total interest paid : 5000
total principal paid : 50,000 - 50,000(from FD) = 0
total interest gain = 40.047.18 - 5,000 = 35047.18
meaning you earn back 194.71 (35047.18/12/15) every month for 15 years. So why we need the rebate?
This only counted if you put those money in FD@4%, if you are good in property / stock exchange , you might earn 2x or 3x from it.
So again, why need to pay more OR eagerly to settle early since it is just 1% of loan?

Because ptptn is running out of funds and the future generation is unable to enjoy the ability to apply a loan.