Please advise as to how to fix my voicemail. When people call they get a message that my voicemail is full even if there are only 3 messages that equal a minute of time. I dialed *86 and changed my pin. There were 2 messages vs the 3 in my visual mailbox. I deleted one message but it didn’t delete from my visual voicemail. My software is up to date. I have an IPhone 8.