Flipkart — Flipkart Buy Now Pay Later- EMI issue

Address: Bengaluru

Flipkart is India’s biggest e-commerce platform but sadly, there’s NO way to contact them! I have been using Flipkart for 6 years.
I bought a cycle on Dec 3, 2024, using Flipkart EMI (6 months tenure). Paid 5 EMIs, 1 last due next month (as shown in the app).
Still, IDFC First Bank says my EMI is overdue by 11 days and reported to Credit Bureau!
I took EMI to build my credit score, now it’s getting damaged.
Flipkart has NO helpline for such serious issues!
Attaching screenshots.