Just had a read up on voxi and actually does seem to be a good deal on the face of it. Three are launching something similar called Smarty. So 16 to 25 yos look like they'll have plenty of choice.
I wouldn't by any stretch of the imagination infer that voxi have trumped giffgaff. They're using a different marketing strategy.
You wouldn't happen to work for voda in some capacity would you ? Seen this sort of tactic in the promotion of games lol. Just asking.
Many of us have great loyalty to giffgaff.
Right up until we find one cheaper and better.
Those are the two contingencies, cheaper, better.
I don't know about cheaper, but how can you get better than this bunch of giffgaffers waiting to help you at every opportunity?