Contact Us
At Costub, communication is the key to building trust and delivering exceptional experiences. Whether you are reaching out with a question, concern, suggestion, or business inquiry, we welcome the opportunity to connect. Our team is dedicated to providing friendly, professional, and reliable support to customers worldwide.
We understand that today’s customers expect more than just good products—they expect responsive service, clear communication, and a brand that genuinely cares. That is why we aim to make every interaction with Costub smooth, helpful, and meaningful. Your voice helps us grow, evolve, and continue delivering products that inspire better living.
Get in Touch
📞 Phone Support
For immediate assistance, feel free to contact our customer service team by phone:
Phone: +86 14789577946
Our team is ready to help with product inquiries, order updates, partnership requests, and general questions.
📧 Email Support
If you prefer written communication or have detailed inquiries, you can email us anytime at:
Email: costubofficial@hotmail.com
Please include any relevant details—such as your order number or product name—to help us respond quickly and accurately. We strive to reply to all messages as promptly as possible.
📍Address
For formal correspondence, business visits, or mailing documents, you may use our office address:
No. 0101001, 22nd Floor, Building 1, Longsheng Century City, No. 77, Shaosan East Road, Chengzheng Street, Yuhu District, Xiangtan City, Hunan Province, China
Our office serves as the center of our operations, including product development, logistics coordination, and global customer support.
Our Gratitude
We are sincerely grateful for every customer, partner, and supporter who has placed their trust in Costub.
Since our founding in 2011, your encouragement, feedback, and loyalty have been essential to our growth. Every message you send—whether it’s praise, a question, or a suggestion—helps us improve and build a brand that truly serves people’s needs.
Your continued support motivates us to work harder, innovate further, and deliver products and services that reflect our dedication to quality. Thank you for being part of the Costub community.
Our Commitment to You
At Costub, we don’t just aim to meet expectations—we strive to exceed them.
Our commitment to you includes:
- Responsiveness: We will address your questions, concerns, and requests promptly and professionally.
- Transparency: We promise clear communication, honest policies, and straightforward solutions.
- Quality Service: Our team is dedicated to making every interaction smooth, respectful, and helpful.
- Continual Improvement: Your feedback guides our growth, helping us improve products, refine services, and innovate new ideas.
- Long-Term Support: Whether before or after a purchase, we are here to ensure you feel confident and valued.
Your satisfaction is our priority, and we will continue working each day to earn your trust.
We Look Forward to Hearing From You
No matter the purpose of your message—product inquiries, partnership opportunities, after-sales service, or general communication—we welcome it wholeheartedly. Your insights and questions shape the way we move forward and help us uphold the values that define Costub.
Thank you again for choosing Costub. We are always here for you, and we look forward to assisting you soon.