There's another difference with the line that I didn't get the email notice for, besides the fact that I actually use it more. It's the one line I started with an actual charge to my CC, it had even been on a plan temporarily back in early 2017, plus I topped up over a year ago using the CC. The 13 lines that I got the email notice for were all started with free $10 coupon codes, and they have never had top ups. So, they never received a cent from me on any of the lines that I received the email notice of expiration. I have not done any phone swaps on any of these lines.
My same observation too. Lines that have added funds to accounts are usually safe as of now. My guess is that Tello is going after accounts that were created for free and haven't have any fund added to them since. Those accounts I notice are quick to zero out.
Promoze, thanks for the additional info! (I see your proclivity for analyzing details hasn't changed!)
Your analysis fits my situation pretty well, too: 2 lines, started with discounted (but not free) allotments purchased through Stack Social. I have not added additional funds since, and neither has received the email. I know that I've done swaps on both lines, but at least one definitely not within 90 days.
I will note that Tello does track the source of any credits, and that at least some levels of CSR can see what the source of existing balances is. (I know this from a prior conversation with support.)
Of course, there's the pesky problem that several members have just reported that this does not fit with their situation.....
3 phones. all flip ( due to battery retention). text and data enabled for all 3.
1 moved from r+ with ported number + promo of $10 paygo free ( i believe) 2/4/17. topped up 12/15/17 balance added through paypal. balance currently $1.58
1 moved from r+ with ported number + $5 free promo of $5 paygo balance paid. my half added through paypal. 3/27/17. no top up. swap 9/22/18 balance currently $7.92
1 with byod + new number +$20 added through paypal balance. 1/7/18. no top up. no swap. balance currently $19.04
all 3 got notices.
none had my cc info unless they can see paypal. i currently dont pay any tello bills with my cc info. i pay through paypal. using my paypal balance.
I only have 1 PAYGO line started in June of last year with a $10 charge on my credit card. My current balance is $9.63. I've done about 15 phone swaps since then, including one just a few days ago. My previous swap on that line was in June. I have not received the notice.
The one line of mine that hasn't gotten a notice also differed from my other lines in that it was a ported number from my R+ account, which originally was with my Sprint and Nextel phones. But it looks like that's irrelevant, as well.
Although I had topped up with Discovercard well over a year ago, no CC is currently attached to the account under "saved cards". If I try to top up, it needs CC info or Paypal. Current balance is $6.02.
It's my main line, and I don't want to take any chances with this line/number, so despite not receiving an email notice, I plan to top up $20 to boost my balance and restart the clock, then add a $6 plan about 3 months later.