Flipkart — Flipkart Smart Upgrade Plan Unlock

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India

I had bought Samsung F-62 128 gb variant from an individual seller 8 months ago today, for which I have a consumer invoice where I was given an invoice by the same individual seller in which the imei number of the product is written, now when I am trying to contacting the seller that his phone is being switched off show and I am badly stuck in it.
And there is no help from seller side also no help is getting from flipkart side also it is said that you have bought stock in flipkart smart upgrade plane, order payment is pending that's why phone is locked now what, i need help about this.

Flipkart Order Id :- OD[protected]
Invoice Number :- FAF07X[protected]
Imei :- [protected]