OnePlus India — Refund not provided for Red cable Pro plan

I have purchased RCB plan for extended warranty after confirmation by OnePlus support team but later they confirmed you are not eligible for extended warranty as your device is in not applicable for this. So I have asked for refund to their support team through chat where they have provided resolution that they are going to refund in 5-7 working days. But now they are saying that as per their policy the refund is impossible which is not at all fare. This will definitely ruin the reputation of OnePlus and even lose customers faith and good will also get impacted.