Poor service

I have moved to Ireland, and I have been trying to get hold of the retentions call centre ( ********** ) for weeks now. I have spent over €30 holding for this call centre. I then got through to one of the consultants who told me they can't cancel cause there is an arrears amount. This is impossible as I do eft payments every month and I have proof of these payments as well. I have worked in Vodacom for over 8 years and I know how the processes work and my account is up to date, I need the numbers on my account that can be cancelled converted to prepaid. Please get in contact with me as I have spent enough money trying to get hold of you