Vodacom debiting money I was not advised about

I was at Southdale branch and requested for two cellphones P40 lite. The consultant advised me that I had to pay R155 for the new sim card. I was therefore advised that Vodacom is going to take R97*2 from my account. To my surprise I was debited R163+R366 which I was not advised about. I am sooo disappointed in Vodacom. I have been too loyal to this brand. I never advise people to take contract cellphones. It's a ****. I will never again.