Vodacom Communication Issue

1. Vodacom again, i have recently upgraded and i have almost one gig of data bundles in my current package. I was not advised that the data will be lost once the migration is completed. I just got the news now and the switch over will be tomorrow and now when i call customer services they just pushing the blame of not communicate with me from one customer service to another. I have been transferred from Customer care to upgrade to online and back n forth without any solution.<br> <br> 2. Another thing, Vodacom still having an advert on TV that when you join a contract for Huawei P8 u get an 1 TB hard drive, but during my upgrade i was under impression that i will also get it, but the lady told me that the special is finished, why is still on TV as promotion.<br> <br> The question is that should i cancel this upgrade and try some other network provider or not since is still within 14 days.