Airtel — Broadband plan changed without any information

Address:

Old Rajinder Nagar, 23/42 first floor

I have been using airtel landline plus broadband for years.in june this yeae my plan was changed from 599 to 899 without informing me and without ny consent. I have called their no 121 hundreds of times but there is bo way you can reach to a person. On everything they send you airtel links. Even on their airtel thanx app there is no way to make a complaint. I have been paying all the bills before due date according to my earlier bills. They are charging me more as per their own wish. I searched for their email id for complaint on net and sent a mail refarding the same. I got a call today after 3 -4 days and they are doing me a favour of waiving rs.200 as if it is my fault. I was told by the executive that its my fault that i have made the complaint late. I should have called them earlier. Well i have called them n no of times but its of no use. They have levied rs..800 on my account on their own. Whereas no one can change the plan without the consent of the customer.