In India your Sim card stops working if you do not recharge ebery month and after 2nd month, the number gets blocked, after 90 days the number gets canceled and recycled.
The going argument is, WhatsApp if your number gets unused for 90 days doesn't let you reset password or something so its all fine.
Then its a matter of submitting a written application with the bank to change your mobile number so its all fine
A few countries in the area have such a short length unfortunately. I’m lucky to have my European SIM card that I can top up once every 12 months. And even if they deactivate it after 13 months, I can recover it within the successive 12 months if I remember correctly.
The going argument is, WhatsApp if your number gets unused for 90 days doesn't let you reset password or something so its all fine.
Then its a matter of submitting a written application with the bank to change your mobile number so its all fine