I sold an item for spares or repair but buyer says they didn't know and want to return it

[sara.go]

First they lie and say they paid double the amount, then later they claim they didn't know it was broken and it has parts missing and is damaged.

I sold it as spares or repair and the photos and description was clear. I didn't accept returns on this item, but they have made a return request sayin that the item is damaged. Do I have to accept and do I have to cover the postage?  it seems that I'm going to lose out any way! 😞

[tsmgmd]

It appears your listing was correct. 

But besides everything else your buyer claims it's damaged. 

That is enough for eBay to accept a not as described claim from your buyer. 

Looking at the pictures it appears the lcd display is u/S. 

So the only possible spare might be the circuit board or the rubber keyboard.