iOS 9.0.2 causes iMessage to act weird

Hi everyone! I just got off the phone with Apple Support, they ARE aware of it, even the guy that was helping me (the manager) said he's having the issue himself. He said the engineering depart is aware and they are working on it. Just thought i'd update everyone.

thanks mate, for the update on the status, glad to hear, they are working on it...

good, thanks for the update.

contacted apple support, had me turn off imessage, then reset network settings, then after phone has completed that action which appears like a phone reset they had me turn back on imessage. this is all under settings of course. appears to have resolved it somewhat but still testing it with a contact since I've had a mixture of successful imessages saying delivered and some that have been demonstrating the original problem. maybe i need to have the contact i'm texting with do the same maneuver....

Hi - I just followed all your STEPS and no go here. Still not receiving "delivered" notice

it is a server issue, you cannot solve it on the user side....

I haven't updated to iOS 9 (using iphone 4s on TMobile), and I have been having issues with iMessage since about middle of last week. Messages sometimes go as text, sometimes go as an imessage. In some instances, I can't receive a msg from another iPhone user unless I have wi-fi on and the message comes through as an imsg. Some messages I sent to a friend with an Android phone didn't show up until the following day after I'd sent them. I've shut the phone down a couple of times and restarted it, but issue is sporadic.

i have same issue. my imessage still on wait for activation in while i will send and reciev mag from email but not from my no.