Not fully informed on process of changing to Discover Bank

I moved my Discovery credit card from the old FNB platform to Discovery Bank, and was not informed that during the process I would have to reregister my Vitality benefits, leading me to losing Hundreds of rands and hundreds of points. When questioned Discovery bank said that they could prove they had informed me. The proof consisted of them saying that it was in a welcome pack. Be careful to regegister your vitality rewards.