I virtually never make outgoing calls on my Mtn prepaid sim but people phone me and I use lots of data, surely that's enough to prevent a number from being recycled?
Was the sim of the number you lost not in a device that was regularly connected to the network?
This is the puzzling bit. The last outgoing call I made with the phone was on December 24th, but I used mobile data all the time when I wasn't on WiFi. Every month I would 'recharge' the account. I think by the time the MSISDN was disconnected, there was R36 on the account. 1) I did recharge the account, 2) I did use network data, and 3) there was R36 loaded (the amount is irrelevant). The 90-day dormancy period doesn't match because I did have revenue-generating activities, but the 115 days of disconnection for the MSISDN aligns, sort of, not accurate, but close. I, however, did not receive an SMS that the account would be disconnected. The last SMS was a WASP promo sent on the 10th. I was very, and very much so, annoyed by this. The line was still active on the 13th, it was disconnected on the 14th.
Since this was a prepaid account, I understood the rules and the burden on the user. I didn't want to argue, as I would have to justify it without a chance of success. Even if I can prove it, the number registered to my identity is locked in a recycling process. This was a number that is RICA'd to my identity in any case. I could still access my MTN mobile app with my number since I wasn't logged out, but everything displayed as "null." Then when I went to the shop, they said that the line shows as active, but is deactivated in the backend. At this point, we started to process a SIM swap, but the shop couldn't process it on their side. So they dialled the call centre on my behalf, who also couldn't do anything, and then they escalated the issue. 24 hours later, I called the call centre with the reference hoping to receive some positive news, but they replied, to quote:
"This number was disconnected from the install base. Get assistance at the point of sale. Can't be reactivated at our side."
The shop I was at was the point of sale all of those years ago. This just left me confused. I am aware of people who have data-only SIMs that have been disconnected in the same manner, most of whom were third-party services making use of the network. The following day at the shop, the number was reinstated already, but not for me. I gave up, and got a new number.
All of this said, the staff at the MTN shop was very helpful; they did the best they could. I can't fault them. What I can say is that they can get much further with their own call centre than I could. Just the mention of doing a SIM swap expedited the process. When they saw how old the SIM was, lol, they thought it to be the reason for not connecting to the network.
I believe their system failed to detect any revenue-generating activity, leading to the MSISDN being disconnected due to inactivity. This is considered a disconnection by the user. Why I didn't receive a warning SMS thereof... I dunno.
All of the admin stuff is registered to my personal number, so it wasn't a big deal. A slow process of changing the number on all of my cloud/online services, IM, etc. was going to take some time, but it is doable. Then I got to Telegram...
Just a final thing. When I first noticed the disconnection, I immediately called the call centre, and they also said that the line was active, and then redirected me to the coverage department who couldn't assist. The amount of times they sent me to a new department... /ugh. So yeah, going to the shop was the most helpful approach.
EDIT: That promo SMS I received falls after the 90 days. I have no idea if it is business days or any days. Either way, it doesn't line up.