Airtel — prepaid service disturbing voice msg

Address:

8 artisan shanmugam st, Chennai, Tamil Nadu, 600023

My airtel no:[protected]
I have a prepaid connection. When the recharge period is about to end, every time 3 days before, when i make a call, i get disturbing voice message stating that the validity is expiring o so ans o day and if not recharged rs 23 will be deducted form main ac...
This is happening every day and every call i dial.
Are you threatening the customer and you want to exit from the service provider like you... Jio is not doing such disturbance... Do you want to loose customers like this as already the company is loosing customer base...
Pl stop this nonsense disturbance and send only msg... We know the expiry and will do the recharge on our own..
So pl stop this disturbance immediately
Thanks