Hi there and welcome
Can you tell me please the make and model of the phone?
yes, I was checking the specifications and locally it does not store voicemail, so it is done by your provider.
Who is your phone provider?
ok, to collect the voice mail
You can then listen to your voicemail and delete it from the system
Let me know please how you go
ok, you will need to call and have it reset over the phone
You can call on 1.***-***-****
To have this done
Let me know how you go please
ok, make sure they give you the correct one, let me know the results please
once they do though you will be able to check and delete the voicemails.