The repayment term is the second lever, and it pulls harder than most borrowers expect. A short term means bigger instalments but far less interest overall, because the debt is gone sooner. A long term shrinks the monthly payment while quietly inflating the total you hand over.
Put numbers on it: R30 000 at 25% per year over two years costs about R1 600 a month and roughly R8 400 in interest. Stretch the same loan to five years and the instalment drops to about R880, but total interest climbs to around R22 800 — nearly three quarters of what you originally borrowed. Neither choice is wrong; they solve different problems. If your income can absorb the higher instalment, the short term is almost always the cheaper deal. If a tight month would push you into missing a payment, and another default is the last thing your credit record needs, the breathing room of a longer term can be worth its extra cost.
When you compare offers, always line them up at the same amount and the same term. A loan can advertise a lower rate yet cost more in rand terms simply because it runs longer, so the number that settles the argument is the total cost of credit: everything you will pay, from first instalment to last.