2006 Infiniti G35 Clutch chatter

When tranny was second time taken off, clutch was checked thorowly and it did not seemed that it was bent.
Do you think the shop where I brought the clutch should give me money back.

Also I wanted to add that when 1 time clutch was installed, if cluth moved in clutch shaft freeley, that it did, otherwise gearbox would have not fit, then it could not bent clutch disc, if disc would have not moved freeley on the shaft, I can agree, but when tranny was taken off second time it was clearly seen that clutch could move at clutch shaft freeley. By the way clutch free travel is normal. I disc is bent you could see it. I checked it my self, the surface plate surface was also straight. The teeth at disc and clutch shaft were also ok.
Only suspicious things are facings cause they give clutch burning smell, burning smell can come only then when clutch is slipping or there is somekind grease. Smell comes still in reverse gear. If tranny goes in freely
it has aut. Adjustment, so clutch cannot be bent.
By the way I have video also of my clutch shuddering. Can I send it to you.

If clutch disc is bend, correct me if I am wrong, then gears could not be engaded, gears are egaded perfectly
it was not rebuild pressure plate, The EXEDY STAGE1 pressure plate is 40% stronger than OEM and width of disc is 0.5 inch wider also, so it is able to transfer power and torque more efectively, car has 300 hp.

Thanks, I will try to do that. The install was made by professional, maybe he was not so experienced!
So the car has to be stall?
Would it straten by time also itself during spirited driving?
Thanks for advise!