Flipkart sbi debit card payment not working

I selected sbi debit card to pay, At first it worked but I entered the wrong pin and it failed, But when I tried again, It took some time to get the activation otp from sbi, But it didn't ask for the pin and the payment failed, But when I try again I am not getting the otp, Sometimes it comes after some time, but sometimes it works, But it won't show the page to enter the pin, And it shows failed I have been trying for 3 hours, straight, I tried clearing the. data of flip cart app, I only have the debit card offer till today