Bharat Sanchar Nigam [BSNL] — speed issue

Address:

Udham Singh Nagar, Uttarakhand, 244713

On 1st Nov bsnl upgraded there plans saying people will get 10 mbps download speed since than its been around a month going to bsnl office daily, some says ur port has problem and changed port, some says ur port needs upgrade even did that, some says ur this plan is getting stuck somewhere changed the plan so even did that, some says line is faulty so I changed the whole line still getting between 5-6 mbps speed.
I am fed up of all this!! these people r lier they r planing to fight against plans of jio fiber, airtel etc but with service like this they r only other companies to grow more. when government own industry cannot provide a good network why to pay them our money we earned from hard work but for them it just waste, we r paying money every month it's not for free so we demand to get the desired speed they promised for without compromises.
These people dont have speed they fool people and make false promises that u will get 10 mbps speed worst 10 mbps getting 5.87 to 6.25 max all false promises and
all fake advertisement
Either resolve my problem or I would need to major steps.
My city is kashipur, Uttarakhand.
Telephone number 275483