Welcome to Vodafone Community
I can't phone out from abroad I have incoming calls and data and SMS but not outgoing help from India support useless days I have not got any problems with the phone have done all they have suggested to no avail HELP
You don't mention the country you are in or how long you have been abroad.
The forum team will be able to get to the thread and provide the necessary account access. However, with you being out of the UK, it will be difficult for you to reply and pass data protection and it would be quicker to persevere with the Customer Service route.
From what you have written it sounds like an outgoing roaming restriction bar on your account that needs to be removed and this where the advisor will need to look.