[Plextalk] when i copy the audible.co.uk file to my ptp 1

hi when i copy the audible file to my PTP 1 it is called this “HoundedTheIronDruidChroniclesBook1UnabridgedPart1_ep6_A1669UEUQLK7U8.aax” assume this is incorrect? since i linked this amazon account it is the worst thing i have done i am sure i get it working but nothing showing up on the pocket