PLEASE HELP!!!!! JMC VIGUS 5

I am very disappointed in JMC South Africa. In 2015 we bought our first JMC VIGUS bakkie. We were very happy with the bakkie and the service from JMC Welkom was very good. In 2019 we decided to trade our old Vigus bakkie in for a new Vigus 5 bakkie. What a BIG MISTAKE!!!!! From 60km on the clock the bakkie started giving problems!!!! JMC Welkom tried to help, but in the end the bakkie was more at the workshop trying to find the fault, but no luck!!!! In Aug 2022 on 60000kilos the bakkie's engine failed!!! No lights or warnings went on!!!! The warranty stated that they must replace the engine!!! Instead JMC said they will replace the parts on the engine, but they can't replace the engine as they don't have any engines in stock!!!! I've noticed that they also haven't brought any new Vigus 5 bakkies into SA as all the faulty one's already in SA!!!!! I wish they just can admit that there was a fabric fault on the bakkies and compensate us for the bakkies!!!!!! NOBODY CAN OR WILL HELP US!!!!!! IT'S A LOT OF MONEY TO PAY EVERY MONTH FOR SOMETHING THAT GIVES YOU NO JOY!!!!!!