Terrible service when trying to cancel lines with Vodacom Business recoveries and Bulk cancellations

I have asked Vodacom for a quotation on 10 lines that I no longer require on four separate occasions and have STILL not received a proper cancellation quote. They bounce me between departments telling me that Business recoveries only does quotes for five numbers at a time, so I sent two requests, for five numbers each. Then they tell me bulk cancellations will get back to me... they don't. Bulk cancellations has not responded to a single email I have sent them over the past six months and all I get from Samantha in business recoveries is "we will respond to you". When I ask when I will have a response she says "I don't know". Vodacom is clearly trying to prevent people from cancelling their lines with them, even though I am completely prepared to pay the cancellation fees, they would rather delay the process for as long as possible so that they can take money from clients trying to leave them.