Bad service from vodacom SA

Very bad experience with vodacom since February this year after i lodged a complaint regarding a ********** number added on my account thus making my payments unaffordable and vodacom blocking my line. After following their procedure as requested, my number is still blocked and every time i call in , they say they have no records of my complaint but i have all their emails. I have been a customer for 20 years without EVER skipping any payments and when this happened, they don't take anything into account. 8 months of frustration and still not solved. Now they want me to pay R6000 to open the line. So what was the point of wasting 8 months of my time