Yonex Co Ltd Japan — Yonex Racket head deformation

I purchased a Yonex Nanoflare 700 Play badminton racket on 24 April 2026 from an authorized Yonex store in Bengaluru.

After stringing and using the racket for approximately 8 days, I noticed that one side of the frame head started bending slightly and became asymmetrical. The issue is visible when the racket is placed flat on a surface, where one face rests properly while the other side does not sit flat.

I did string this racket for 3 times. Also i feel the racket balance is not even because of bend head.

I informed the store regarding this concern. The racket was restrung multiple times (3x), including at 26, 25, 25 lbs tension, but the same issue continues to appear repeatedly on the same side of the frame. The store has informed me that such deformation is “common in head-light Nanoflare series rackets.” also told me by the salesman that don't put much more lbs 25 is max, as i like to play with 26 lbs.
However, I would like clarification from Yonex India regarding the following:

Whether such one-sided frame deformation is considered normal for the Nanoflare 700 Play series.
Whether this may indicate a frame weakness, manufacturing issue, or structural inconsistency.
Whether the racket qualifies for inspection or warranty evaluation.
Its very difficult to play due deformation, and it affect the aerodynamics and stability.