Expiration date bug for Legacy Pay As You Go?

The support rep was able to quickly confirm that my last payment was 9/4/2021, so the May expire is clearly wrong. The added language was that my account was switched from legacy to Rebellion in 8/28. I don't know if that is the actual cause or not. My guess is that it was caused while I was switching to a new phone. I did the "stop international calls" thing for example.

Status. The support rep turned it over to the tech group and she or they will get back to me. I will try to remember to update progress here.

P.S. I found “Rebellion” from as far back as 3 years ago, with somebody complaining about that system.

I have now called 3 times and it is three months since I did the top up and they have still not fixed my expiry date.  Did anyone actually get theirs fixed? 

Not yet for me. The support is very nice and helpful but the account does not seem to respond to them. The added feature for me is that my text messages are not blocked in and out. Since Legacy can't change that in the my.tmobile login I just called in a ticket to fix that. She did try to fix it herself but got an error so has opened a ticket to the upstream techs.

To give credit where due…

Just found my texting to work again so they did fix that one pretty quick. I also see that my expiration as reported by my.tmo is now at 6/6/2022, so it is incrementally moving forward toward the proper 9/4/2022.

Also having the same problem with a changed expiration date. My wife and I have been using our Legacy Pay as You Go with Gold Rewards since 2007 (15 years ago). My wife renewed hers on 11/22/2021 and the new expiration date was 11/22/2022. I renewed mine on 02/01/2022 and the new expiration date was 02/01/2023. On 03/03/2022, we disabled the feature "Block international calling-voice/text" on our lines, so that we could make international calls and texts. When we checked our accounts the following day, her expiration date as well as my expiration date became 06/03/2022, which is 90 days from the date that the feature "Block international calling" was disabled. I suspect that disabling the feature changed the expiration date. I have not tried enabling the feature to see if a new expiration date of 90 days after the change would be shown, for example, if I now enable "Block international..." on 03/08/2022, that a new expiration date of 06/08/2022 would show up.

UPDATE 3/14/22 (A very discouraging development):

Almost 3 months since I added funds to my 2 legacy gold accounts.  I now can't even get the expiration date info on these accounts from the t-mo website.  i keep getting this "F451 Service Unavailable error … try again later"message when I try to go to the page that used to show the remaining minutes and expiry dates (I'm still able to logon and it shows both lines still active).  This error has persisted for about 3 weeks now.  I've tried using different browsers (firefox, edge, ie, savana) like one forum suggested but none worked.  I've also  tried disabling ad/tracer blocking,but still doesn't work. My incorrectly shorten (3 months instead of a full year) expiry dates are coming up and i can't even tell if they've fixed the expiry date problem or my accounts will expire soon (like in a couple of weeks).

I don't think this is a coincidence.  I think this is t-mo's deliberate attempt to get rid of legacy gold account holders or at least make it very inconvenient for them to keep their accounts.  Customer Service Reps may be oblivious to this, but they probably know about this at the higher up.

vkwong, same here, F451, etc.  Their site has been so often inaccessible for long periods in the years of my legacy account that their deliberate sabotage, as opposed to amazing ineptness, does seem a reasonable guess even though I generally suppose the latter. I never got the claimed call back or correction for the web site in 72 hours from  their Customer "Support" last week.  However, the employee did tell me that, from the cell phone, I can get the expiration date using #225#  via its keypad.  That did work and it showed the correct Feb 2022 expiration date for that phone, as shown via my PC  at their site when it was last working in Feb.  A pain in general and much less helpful for the phone on my account that my brother has, but it is something.  

Correction    expiration 2023, of course. 

Update.  Although I never got any message from Customer Service in 72 hours as promised, or any other time, I have tried  their site every other day or so and now, 2 weeks after my call, I did get to the account with the 2 legacy gold phones today and I was able to add $15 for one and got an expiration date of 3-23-23.   I now had to log out and log back in to get from one phone's info to the other, but that's not terrible as long as it stays usable.    

(UPDATE: 3-31-22)  Things are ok now.  Just added $10 each ($11.20 w/ tax) to my 2 legacy gold accounts and the expiry dates correctly show a year away (March 2023).  #225# works, but to my surprise, even their website is working again.  I.e. I no longer get the "F451 Service Unavailable error … try again later" message. I can actually to go to the page that show the remaining minutes and expiry dates

All is good for now.  Let’s hope they don’t screw things up again later.