My mum and I went into JD and we asked if we could...

My mum and I went into JD and we asked if we could try on 2 pairs of trainers in size 2 and a half. We waited 20 mins and then saw the guy we had asked just standing there and having a chat. My mum asked him if he had forgot about the trainers. He said no, no, we only have one of the pairs in . So mum said where are they? And we waited another 20 mins and he came back and said that they actually had none of the trainers we wanted.