Delayed voicemails on iPhone 13

g00se1 wrote:

receive voicemails 2-3 days after it has been left

That would be an issue with your cellphone provider only they can fix it, report the issue to them.

g00se1 wrote:

Verizon tells me it's an apple issue!

nope has nothing to do with Apple.

Voicemail has always been a phone carrier feature.

Escalate it with their technician.