BSNL WIMAX
Same money and bandwidth decreased 1/4 times

I was paying 900 rs for bsnl wimax from january onwards... without notification they decreased the bandwidth 1/4 times and now speed is very very slow and money is same... disappointed.. i called them so many ties to check the speed... they say they will come to check but they never ever come.. now i have no option left rather than to cut my connection