iPhone delayed voicemail
I have an iPhone 6 with Verizon. Never had an issue until recently. Lately my voicemails have been delayed. One took 6 days to get, another 3, and I have one now that still hasn't shown up in my voicemail.
If I miss a call I now call *86 and they can be retrieved the old fashion way. I reset my phone's network settings and voicemail password to no avail. Verizon hasn't been much help.
Is this a Verizon problem or an iPhone problem?
Thanks
[Re-Titled by Moderator]
iPhone 6