Service level not up to standard for a blue chip company

I would like to give vodacom a 0 rating.. for service. I have a gone a couple of time to outlet to have my data issue sorted.. no such luck...all they say most of data used with Netflix.. however I have a cell c one time 365 days data also ( 200 gigs for a year) I never used it all....purchase on August last year... still have around 130 gig still. However Vodacom also gives me a mobile wifi with a 100 gig monthly for R499 of anytime data... but the 15th of the last 2 month it used up...all the individual at vredenburg vodacom shop say.. manager in meetings will call me, no call received. Also Im told is that vodacom agreement with data vendors is at that price... which is higher than other service providers... surely they should have stronger negotiating power for their client. To make it even worst they not prepare to upgrade to a higher data package... until 5 month to end of current contract. This means thier contracts are one sided only. Also I believe Icasa regular has stated that data should roll over for 6 months before expiry. We need more telecommunications supplier in SA to help us have a cost effective and real service Vasco ***