Vodacom Double standards

In-store I wanted to upgrade and got an offer. I had 2 contracts with Vodacom, while I was in-store I decided to cancel 1 as it was not in use, during the cancellation the consultant decided it would be a good time to offer me an even better offer over the phone, however I felt bad for the lady who had just spend time with me on this sale so I didn't take the offer on the phone.howevr afterwards I felt ****** knowing that Vodafone could offer me better but only at the expense of 1 of the in store workers .How can it be that people working for the same organisation canabilise each others sales and put the customer in the middle. yes I was probably stupid for caring about the consultant but that's my nature. I feel it horrible what Vodacom are doing to their staff and at the end of the day the customer is out in the middle, I lost out and I'm look for avenues to cancel without losing more..help or spread the word thank you