Dear [Factory Partner's Name],
We have recently received multiple complaints from our partners regarding the packaging quality of our toy products, specifically concerning blister sizes not matching the backing cards and inconsistent flange folding. This has resulted in some items being deemed unsellable, prompting us to reconsider our previous trust in the factory's oversight of packaging details. As competition in the market intensifies, it is crucial that we ensure our packaging meets the same quality standards as our toys. We urge you to prioritize these packaging concerns so that we can prevent further issues and enhance our partnership. Your cooperation in resolving this matter promptly would be greatly appreciated.
Best regards,
[Your Name]
[Your Position]
[Your Company]