Jio Reliance — useless jio router

I bought the jio router wireless and it is giving problems since the beginning. I took it to the service centre and there was only the security guard whom i could speak to. There was reliance jio official or technician i could speak there was no place of sitting or no drinking water facility. The security guard sad i shud tell him all my problems and he will note it down. The next day when i went to collect the router, the security guard said that the router was repaired. There was no way checking whether it was repaired or not as the router completely discharged. There was no plug or socket to charge the router in the dirty basement office of reliance jio. Anyway i had to bring ti home and it is still giving problems like before. The range is not even 2 feet and the speed is just about 3-4 mbps. Never buy this useless router.