Question about Red Cable Club discounts for Nord 6 Early Bird sale

Hey everyone, I’m planning to pick up the OnePlus Nord 6 during the early bird sale tomorrow (April 9).

The launch price is ₹38,999, but I'm trying to get it down to the "effective price" of ₹33,999. I’m a Red Cable Club member, but I’m a bit confused about how to claim/stack the coupons properly.

Does the RCC voucher apply automatically at checkout, or do I need to claim it from the Red Cable Privé first?

Can I stack the ₹2,000 RCC discount with the ₹3,000 bank discount (ICICI/HDFC)?

For those who bought the Nord 5 at launch, did the "No Cost EMI" still let you keep the bank discount, or did the processing fees eat up the savings?