I'm extremely disappointed with my experience at BestSecret. As a long-standing and loyal customer who has spent a significant amount of money with your company, I find the termination of my membership utterly unacceptable. To be penalized for normal and necessary online shopping behavior, such as returning clothing to ensure proper fit, is baffling and unprofessional. Your refusal to provide specific details, citing vague "significant operating costs," lacks transparency and disrespects customer loyalty. This decision has left me completely dissatisfied and re-evaluating my future engagement with your company.