roaming

i left SA on the 24th of July 2017 till now i cant make or receive calls am only receiving SMS i have made several attempts of calling vodacom even sending people in SA to vodacom fourways store to inquire physically why Vodacom hasnt activated calling roaming of which i personally made sure i texted and called vodacom the day i left to ensure my roaming would be activated . almost 2 months later no change .... very disappointing i can not even call vodacom because my line is barred from making calls