Nedbank home loan is mistreating its Black clients

this is a follow up on my complain about the bad treatment of bond ownwers at nedbank. I bought a house in 2019 in september and in march 2021, during covid I requested for payment break of 3 months, that was April to June 2021. At that time I had lready paid 7 months in my home loan and from 240 months so that means, I was left with 233 months in my bond. But in June 2021 I was sent a new bond term of 251 Months, that mean my bonds was increased with 18 months. I was not consulted with this changes in my bond term and it is unconstitutional. Who gave them the right to do this? For 3 months payment break Why? did they add so much months, the bond I signed for was 240 months what makes it to increase this much.