State Bank Of India [SBI] — increased my limit and after utilization of amount my limit was decreased

Address:

560054

Hello my name is ranjan mohan. I am holding sbi credit card on fixed deposit.

I got it four month back, three month i have used it and paid my bill on time, as its credit limit is just 17k, i requested them to increase the limit to 60k..
They initatlly told there is no offer right now but we will increase it if possible looking my previous history.

Now suddenly after utilizing 17k, my credit limit increased and i got 17k, 15k, 9k respectively in my account..

As my need i spended the amount but now after 3 days i saw my balance in negative 29k.

And total outstanding balance 46k.

Now i got frustated because of that also my salry is very less and i cant be able to pay..
I requested them to increase my limit and they are telling its not possible and making my daily balance negative..

I had discussion with the floor head and they told its not possible to increase the limit.

I am very frustated because of that and need help here and want to sue them with 10lakh rupees and also my limit should be increased.