Hello..First off ..Under my Title concerning this question it states "Not Answered" but you did answer.
. Related to Question: The people are on the same network as they always have been, nothing has changed There not all T-Mobile people. I notice when I enter people in my contacts.It states T-Mobile to T-Mobile and Google..For some reason T-Mobile puts all my contacts in T-Mbile to T-Mobile and this is inaccurate. When I go and change then go back to contacts there back in T-Mobile to T-Mobile. I guess I don't know how this works. I assumed T-Mobile to T-Mobile are Two people with T-Mobile accts.
When I receive a text..then another person texts me the text before that one comes up like 3 times the same for the next text keeps showing the same text over again but when I check that text its there only one time.It seems to repeat itself. All this I have encountered all within a months time. I never changed anything.
I'm not sure I completely understand your situation or your issue. It sounds like you have multiple accounts synchronized with your phone - tmobile contact sync (whatever their backup system is called), and Google. Typically this doesn't create a problem in terms of sending/receiving messages, but in you case, it looks like you get notified multiple times.
As far as I am aware, there is no system on the consumer end that lets us know if a contact is a tmo subscriber or not. I would advise you to visit your local store and speak with a representative and show them your issue. I think describing it to a rep over the phone or typing it out online may be more complicated.