Yep weve established the cracks probably wont effect the performance of the turbo, so your "checker" stated no cracks on packing it before posting, your accusing the buyer of lying then i guess.
You stand by your pre-post checks then like Ants wirring loom too yes?
I do agree that 4 months on is too late to really issue a refund but it doesnt look too good with the descriptive side of all this.