Flipkart — Order delivered later marked as cancelled

Address:

Bangalore

Hello I placed an order with flipkart on 23/05/2022 Order number- OD[protected] for Infinix Zero 5g mobile. My order delivered successfully on 27/05/2022. Now after some days flipkart cancelled my order. Now I am unable to download the invoice for the product. I continuously calling their customer care but they are unable to provide me the invoice. How can I get my phone serviced without the invoice? I also forwarded them the phone company box images with the IMEI number mentioned to prove them my phone has been delivered to me.
Please help me to get the bill/invoice ASAP.