Flipkart — Unable to pay my pay later smart upgrade bill

I have purchased Realme GT master edition with flipkart smart upgrade plan (order id - OD[protected].

From October 1st I suppose to be eligible to pay the remaining 30% balance that is 8400/-.

But I am unable to pay that as my pay later account is disabled. My due date for the payment is approaching. My phone will be locked if I am unable to pay the payment on time.

I have tried to reach out customer care from last week but didn’t get any relevant response.
They are just keep moving the resolution date and telling me our back end team will contact with you.

Please resolve my issue otherwise my phone will be locked and my cibil score will be affected.