Question for existing Barclaycard holders
i have a Barclaycard currently with a very long 0% deal and balance on that im in no rush to pay off before the end of the 0% period

if i switch my Barclaycard to the new Avios card will my existing 0% balance start getting charged interest ?
Or will they have to honour the current arrangement ( as I paid a fee to get the 0% deal )?