OnePlus India — One Plus care not being activated, phone submitted since more than a week, no calls, email

Hi,
I bought oneplus 9RT with oneplus care plan on 23rd January from their website, the display unfortunately was broken when received, I gave it to the service center on 29th, care plan wasnt activated.
Now since then I have called atleast 50 times to the customer care, they keep saying someone will call me, yet I have not received an call or email. I donot know the satus and it has been more than a week now.
I am being haraased by oneplus, made to wait on call for more than 15 mins without anyone coming back .
Please help me