I have booked my ticket “Delhi To Gorakhpur” but they end my journey at lucknow without prior information

I have booked my ticket with makemytrip.com for singh tours and travels on 4 march 2015 at 10 pm from New Delhi to Gorakhpur. At the time of departure Singh tours & travels said ‘ye bas kewal lucknow tak jayegi..Gorakhpure nahi jayegi..200 rs difference de denge ham” I have no more option because it was the time of holi festival. I had reached lucknow in 14 H. Amit Singh’s talking manner is too rude. I was very disappointed with makemytrip.com as well as Singh tours & travels.