Vodacom Bullying customers refusing to Upgrade

I have 2 Data contracts with Vodacom, as well as a Normal Line rental contract. I have have a million phone calls regarding the 2 data contracts that are close to expiry, and the more I tell the Vodacom agents, or their contractors that I am not interested in upgrading, the more I get spammed.

In the last day I have received 7 Phone calls from a Bloemfontein Number ***, as well as Vodacom Insurance with a 079 number. Vodacom and their agents are bullying customers, and I have decided to terminate all my accounts with vodacom once they come to the end of their terms. I have had it.