Charged for Data after having a data block that was switched off and unauthorized services being charged

I have been with Vodacom going on 20years. I know the in's and outs of Vodacom and that you can add features to your account. I have had the data lock feature on my account for years. 3 Months ago my data did not stop, I was not alerted and yet Vodacom Cell phone app said I had more than enough data. I got billed over R3000. They have blocked my account and every time I try and phone I get transferred from Pillar to post. Second to this I have realized that I am being billed almost R500 for Vodafone services that I never gave permission to be charged to my account "vodafone p-squarem-hunkydory-c-0" just because I am a Smart M client. So Vodacom, before even phoning me, I want all cost reversed for this so called vodafone service that I never use for the last year and I never gave you permission to bill permission to Regards