Payment holiday ****

I had taken a payment holiday during covid 19 lockdown because my husbands salary was affected. I had 54 months remaining on my personal loan once the 3 months were over I had 50 months my loan still incurred interested and assurance. When I checked my money app they increased my loan term to 59 months. How is this fair? I will now be paying nedbank back 20900 for a payment holiday that only cost R6900. This is ******* I tried calling the call center and they either cut my call or transfer my call.