I further discussed with UK-Jacquiee about the screws too short and she corrected the info as below in black. (I attached the diagram KP25-00P07 for your reference too.) Sorry, I sent out 'customer complaint' too rush.
So these two cases are different from the problem Taiwan market have. Please Vivi and 旺仔 cosider whether you want to fill out another customer complaint. 旺 UK的客訴和您說的不同, 看您要不要另外開一張客訴. Thanks.
Sorry it was my mistake it is not the battery box but the motor, where the screws are too short. On the diagram below it is the screws holding the side mounting plate onto the motor, number 5 for the washer. Hope this helps.
Regards Jacquie