State Bank Of India [SBI] — Gst, sbt & fin charges

Address:

Mumbai City, Maharashtra, 410206

Gst, sbt & fin charges ?

I am using sbi yatra credit card since oct-2015 & i have paid the amount on regularly without delay, but i dont understand the what is gst, sbt & fin charges.
I have paid rs.499 toward the annual fees / charges for 1st year. As convey by sbi credit card representative there is no any annual fees / charges if your purchased is above 75000 in one year.
I have also trying to contact to sbi credit card customer care but no any positive & satisfactory reply.
Kindly resolve the issue & revere the amount to maintain the reputation of sbi credit card.

Regards,
Ketan k
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