Not the company to deal with as an international business person

Before a 3 week trip to Europe I called the to ensure my voicemail is active and functioning. I was told that it has all been sorted. Now 2 days on my trip I learned my voice mail is not active. I am potentially loosing a lot of money because of their incompetence . Had someone call them in SA and there is nothing you can do now unless I am in the country and able to call certain numbers that does work abroad.