Poor boarding experience x 2

I usually FlySafair..creature of habit. I had to fly from CPT to JHB this week.. but Safair was sold out so I booked Lift... on the departure flight we boarded and it was cooking on the plane. Explanation from staff was that the ground power control unit isn't working. Flew back the next day and exactly the same problem on a different aircraft.. clearly original excuse wasn't true but a cost saving exercise for the airline. Multiple people complained on both flights and all the staff could do was shrug their shoulders and say that the ac will come on when engines are powered up.. in both cases flights were late.. needless to say it was an uncomfortable and smelly flight x 2 Won't fly Lift again

Also no branding on planes..in this day and age?