I am trying to keep one of my backup numbers active. Meaning, just active for future use. I don't not need it for anything right now, not even for incoming calls/texts.
The old 1498 Unlimited Plan (365 days) ended on this number, on Sep 10, 2021. Post that, Airtel gave me 7 days of Outgoing/Incoming grace validity, which ended on Sep 17, 2021. After that, Airtel again gave me another 7 days of grace validity (3 days Outgoing/Incoming + 4 days Incoming only), which ended on Sep 24 2021.
So for the 90 day counter, Day 1 began on Sep 25, 2021, and therefore, Day 90 was on Dec 23, 2021.
As of EOD yesterday (Dec 24, 2021), I was under the impression that 91 days had past since my previous Incoming validity ended. So, I was going to recharge with Rs.99 a few hours ago (that is, after 12.00 AM on Dec 25, 2021).
However, before doing the recharge, I checked with the USSD *123#. I also checked the Airtel Thanks app for this number. Both of them are now saying that my previous validity ended only on Nov 19, 2021.
When I looked closer, I saw that Airtel had given me a single day of Outgoing/Incoming validity on Nov 19, 2021. Both the Incoming and Outgoing validities seem to have begun and ended on that single day. The *123# result says that much.
Question:
Should I recharge now (just to be on the safer side), or should I begin the 90 day counter again, starting from Nov 20, 2021?