SBI Spice Jet Credit Card — false promises

Address:

Bangalore, Karnataka

i was given for a sbi spice jet credit card after payment of rs 2500 inr with which there was one voucher of spice jet given , entitling a free one way travel any sector valid for one year , terms and condition were fully understandable by me . there was a mention of the black out dates on which the travel will not be possible .now please let me draw your attention towards the fact that i was shocked when i tried to use that voucher for my planned travel in june i came to know that full two months ( may and june ) are black out by the spice jet and sbi instead of some days as in terms and conditions this amounts to cheating ( the fact that i have paid 2500 inr for this card )
now suppose that suddenly spicejet people decide that full 6 months are black out and then where does this validity of one year stand , it really puts the creditability on doubts i am very sure no private organisation can dare to do such a thing they definitely would have honored their words

regards
dr ritu