Possible factory fault with my 2017 Ford Everest 2.2XLT

I have to say I am beyond Disappointed with Ford. I bought the new Ford Everest 2.2XLT in January 2017 from Barloworld Ford in Alberton. I never had any issues with the vehicle until all of a sudden in November 2017 the car started losing power completely randomly, at times it wont even go over 20KM per hour even when my foot is flat on the accelerator even when its downhill. This happens with no warnings or warning lights displayed. I took the vehicle to the workshop at the Ford in Nelspruit, they said it was a software problem and they only have to update the software and all should be well but of course it wasn't. From November 2017 to date this car has been to the workshop more than 4 times and the problem still persists. I think its safe to say they don't know what the problem is. In the mean time I am paying a very large installment for an unreliable vehicle. I travel a lot and I do long distances and this car is a danger to myself and my family's life because on several occasions when i have tried to overtake on the road it just loses power while there is oncoming traffic. Furthermore, I keep having to send it to the workshop and this inconveniences me yet there is no solution, the last time it was there it spent 3 days at the workshop but on the very same day i collected it the problem persisted. I have contacted FORDSA to inform them of this issue and they told me to take it back to the Workshop at Ford, this was on the 15th January 2018 but because I had a business trip I couldn't take it there and I opted to take in today but I received an email from Alfred from FMCSA stating that they will be closing my case, I don't understand that because my problem is still not solved. I am deeply disappointed in Ford, I owned a Ford Ranger 3.2XLT previously and I enjoyed that bakkie and I thought i could enjoy the same loyalty from the Everest but instead I feel really let down by the brand, since they haven't been able to find and fix the problem I am led to believe that the vehicle I bought has a factory fault.