Bad customer service and Business practice at Rentoza

I have nothing but bad experience with this company. Your device (phone) gets blocked even when your subscription is up to date. The numbers provided don't even go through when you call them. And when you try to chat to them on Whatsapp they take their own sweet time getting back to you, even on their emails. Basically, their customer care centre is basically non-existent and very much unprofessional and have a "f u approach" as a customer. I definitely wouldn't advise anyone to use this company. And based on the reviews submitted, whenever you give them a negative review they don't even bother responding to it and only concentrate on the positive ones. And this further affirms my claim of an "f u approach".