Airtel — data speed poor

I switch my connection from jio to airtel... I can not able to take the proper speed.. It is just 5-10kbps.. My phone can not able to catch the 4g network.. And on 3g service, my speed is just very low and cant be able to load the single page... Your coustner executive says that my signal strength is excellent.. Then why i cant be able to use the service? Airtel is just the crap.. Cant fulfill my needs and have to shut my connection early if it takes much time to recover.. Phone number is [protected]