Jio — fraud marketing about 4g speed

Address:

Jharsuguda, Odisha, 768201

I am soumyaranjan behera, i recently bought a 4g mobile and portable my operator to jio expecting 4g speed. But what i am getting is 20 to 30 kbps which is 2g standard speed. Now i can't change operator for at least 3 months, there should be a law in india about 80% of speed of what carriers are marketing at. I am very frustrated and sad as indian government is not doing anything about it.