I did a live chat with Yahoo! today. Below is a transcript of the conversation:
All Yahoo! agents are currently assisting others. Thank you for your patience. A Yahoo! agent will be with you shortly. Your expected wait time is approximately 0 minutes.
You are now chatting with Agent
Agent: Hi Me. Welcome to our Yahoo! Mail Live Chat service.
Agent: I'm glad you've joined us.
Me: Hello and thank you.
Agent: Thanks for providing the details of your issue.
Agent: From what I understand, the Push Notifications are delayed or are not functioning on your iPhone iOS device. Is that correct?
Me: That is correct. It stopped working early last week.
Agent: Thanks for confirming that. I can see how inconvenient this must be.
Agent: May I have your email address in which you need an assistance for this issue?
Me: XXXXX@yahoo.com
Agent: Thanks for confirming.
Me: Also, just so you're aware, other E-Mail services are pushing. I also checked in with Apple and it seems there are quite a few iOS users with this same problem.
Agent: Yes, I understand your situation and would like to inform you that this is a known issue at our Yahoo! side and Our Engineering team is already working on the resolution now, and we intend to have it corrected as soon as possible. The ticket number for this issue is 5085840.
Agent: I apologize for the inconvenience this is causing you and I appreciate your patience while we correct the issue.
Me: Okay, so your company is aware and working to resolve it, is that correct?
Agent: Yes, it's not an issue at your end, it is at Yahoo! side and once it is resolved it will automatically applied to your account.
Agent: Aside from that, is there anything else I can help you with?
Me: Nope. I appreciate your help. Thank you.
Agent: You're welcome.
Agent: I'd appreciate it if you'd complete a survey at the end of this session to give us your comments and suggestions. To find the survey, click on the "End Chat" button at the top right of the chat window and you'll be directed to the survey page.
Agent: Thanks a lot for chatting. Have a nice time!
Agent: If assistance is not needed anymore, please click on the "End Chat" button at the top right of the chat window to give way to other customers.
Thank you for contacting us. Have a great day.
So, apparently, Yahoo! is aware and there is a ticket. The ticket number, in case you missed it, is: 5085840