payment allocations

i have recently transfered money around 2 credit cards so that in theory i would have one with a balance of £4000 @ 0% and the other would reduce a 20.6% apr to 4.9% this was the best case scenario i could achieve with my credit history
i have recieved my statement and the 0% card is showing [email protected] 0% and 2000 @ 19.17
my understanding was that payments above minimum would be allocated to the higher interest and one of the transactions has done this but the other has come off the 0% balance im not sure if ive messed up or there is a mistake ?

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