Reliance Jio Infocomm — poor internet speed and drop down call of jio

Address:

Kolkata, West Bengal, 700064

I am vinay kumar verma presently staying in sector 1 salt lake, kolkata-64 working in governments and using jio no.[protected] and two more jio considered better service provider and got recharged with 399 for 84 days in all the three, i requested in jan 2018 first time for poor connectvity bad service but assured that this service will improve in ten days still same reply and today when i complain to them regarding this poor service and conveyed when i was enquiring before purchase you told that service is so prompt that none can bit this in speed as well as no call drop, what happened to all my number. They told number of customers have increased and this will continue till some arrangments. Now i am fed up some time gets calls and remaining either some sound or oh sound. What shall i do? I am fed up even to call customer care because with same replies.