Thank you for your continued patronage, we truly appreciate your business. If you review your repair invoice a bit closer, you will see that the $300.00 labor fee included some of the work performed as well as the diagnosis fee. The actual diagnosis fee you were quoted was $120.00, we discounted that to $60.00 since you approved the repairs. Please feel free to contact us if we can help clarify those costs. Again, thank you for the nice review, and allowing us to continue to serve you.