Possible misleading information regarding a contract

in Nov I was called and told that because I was such a loyal customer, I was being offered a fantastic deal R199 for 20 + 20 G (if I recall correctly) data that I could share with five other numbers, it sounded like a good option and I went for it, the sim arrived a few days later, and I tried to share via the mobi app, eventually I gave up and then called Vodacom who told me as follows (and I need clarity on this) a) you can only share to the same type of package contract, b) you can only share after 25 days, and then c) for five days, I would like to request the recording because if the points a b c above are correct and were not clearly communicated to me telephonically then I want to cancel the contract, because then this is not a good deal at all, I tried a short while ago to contact vodacom, but after hanging on for about 20 minutes got cut off, please can someone advise