MTS / Sistema Shyam TeleServices [SSTL] — Worst connection ... Thinking about cancelling my connection

Address:	Kolkata, West Bengal, 700015
Website:	mts india

My mts no. Is [protected] i was paying about 1400 rs but after some price hike currenlty i'm paying about 1500 rs for 40 gb data (20 gb day and 20 gb night) but the speed is so worst that youtube videos still run at 360 p and worst part is after the whole 40 gb or 20 gb morning data finished the speed slows down and is so slow that it makes the 2g data speed seems to be faster. Every pages opens up after 2 to 3 tries even this happens to simple google website.
I could have got a far better options at that price but for my needs i need a wireless connection, i'm fed up with shot of treatment with users and now i am thinking about cancelling my connection after so many years, looking for different options.