Nextbase IQ 4 and Rear dash cam

l installed this about 6 weeks ago. Front cam works well but the rear cam has never worked. Support is pathetic. No Live support for US customers because they are based in the UK. It takes 3-4 days to respond via email. After several "back and forth" emails, resetting, etc, there is still no resolution and my rear cam still doesn't work.
And it is subscription base if you want all the features.
Stay away from Nextbase!!!!