Vodacom wake up!!!!

Vodacom you are a disgrace! Early last year I emailed your customer care several times to kindly stop debiting my account R75.00 for having my number as I had LEFT South Africa and moved to the UK. Why am I being charged for a number I have not been contracted to for nearly 2 years anyway?!?! You did nothing and so I called months later from the UK to get this debit order stopped once again.... you STILL have done nothing!! This is *******!! Who in Vodacom will be accountable for the money going out my account EVERY single month??! Will someone please wake up and sort this out?!?!