Unhappy Client of Vodacom

After almost 20 years at Vidacom cancelled my contract due to unemployment was told in March my contract ends in December. Called July 3 months in advance was told to call a month before. Called in August was told to call on 26th September. After calling 5 times was told its cancelled. Received beginning October an account for R345 3 November R671, 5 November R954 7 Novembee R1222.33. After having debit orders and never skip payment what is this happening Vodacom you want to rob. Me Jobody at any call center or branch can help.