Vodacom
CANCELLATION OF ROAMING ETC

I HAVE HAD MY CONTACT FOR MORE THAN TEN YEARS, AND TRAVEL FREQUENTLY ABROAD. VODACOM HAS
1) CANCELLED MY ROAMING
2) CANCELLED MY ABILITY TO MAKE INTERNATIONAL CALLS

ALL THIS DONE WITHOUT NOTIFYING ME AND CONTACTING ME? HOW COULD YOU POSSIBLY DO THIS AND WHAT JUSTIFICATION IS THERE?
MY ACCOUNT HAS BEEN PAID IN ADVANCE FOR THE PAST TEN YEARS

THE CALL CENTRE CONSULTANT (SISANDA) COULD GIVE ME NO REASON