OnePlus India — Oneplus buds left side sound issues

I purchased oneplus buds of rs5000 1.5 years ago In use of 6 months left side buds stopped working. I raised complaint and they replaced it but again within the 6 months of replacement the left side stopped working, I raised the complaint again but they it out of warranty (which is true) and we can't replace it so I ask I am ready to pay for replacement cost but they said they don't do so. It means I wasted my 5000 on plastic scrap which is not get repaired/replaced after get out of warranty.i request to get a replacement or compensation for this.