Contact Information

Last updated: September 10, 2026

If you have questions about our products, orders, payments, shipping, delivery, returns, refunds, privacy matters or other issues relating to our online store, please contact us using the information below.

We aim to provide clear and accessible contact information so that customers can reach us regarding their purchases and use of our services.

1. Company Information

Company name: 名古屋酸素株式会社
Corporate Number: 1180001007067
Representative: 飯田 哲郎

Registered address:
〒455-0801
愛知県名古屋市港区小碓1丁目12番地
Japan

Email: support@gdxxz.shop
Telephone: +81 90 4861 0859

2. Customer Support

For general customer service enquiries, please contact:

Email: support@gdxxz.shop
Telephone: +81 90 4861 0859

You may contact us regarding matters such as:

  • Product information;

  • Order status;

  • Payment questions;

  • Shipping or delivery;

  • Shipment tracking;

  • Returns;

  • Refunds;

  • Damaged or defective products;

  • Incorrect or missing products;

  • Account-related questions;

  • Privacy requests; or

  • Other customer service matters.

When contacting us about an existing order, please include your order number where possible so that we can identify the relevant purchase.

3. Order Enquiries

For questions concerning an existing order, please provide information reasonably necessary to identify the order, such as:

  • Your full name;

  • Order number;

  • Email address used when placing the order;

  • Delivery address where relevant; and

  • A brief description of your enquiry.

Please do not send passwords, complete payment card details or other unnecessary sensitive information by email.

4. Shipping and Delivery Enquiries

For questions concerning:

  • Shipping status;

  • Estimated delivery;

  • Tracking information;

  • Delayed parcels;

  • Delivery attempts;

  • Lost parcels; or

  • Delivery address issues,

please contact:

Email: support@gdxxz.shop
Telephone: +81 90 4861 0859

Please include your order number and any available tracking information.

Shipping and delivery matters are also subject to our Shipping and Delivery Policy.

5. Damaged, Defective, Incorrect or Missing Products

If your order arrives damaged, appears defective, contains an incorrect product or is missing an item or component, please contact us promptly.

Where reasonably relevant, please provide:

  • Your order number;

  • A description of the issue;

  • Photographs of the product;

  • Photographs of the outer packaging;

  • A photograph of the shipping label; and

  • A video showing the issue where useful.

Please keep the original packaging where reasonably possible until the matter has been reviewed.

We will assess the information and provide an appropriate solution in accordance with our policies and applicable consumer law.

6. Returns and Refunds

For return or refund requests, please contact:

Email: support@gdxxz.shop
Telephone: +81 90 4861 0859

Before sending a product back, please contact us so that we can provide or confirm the applicable return instructions.

Unless another authorized return location is provided for a particular return, our designated return address is:

名古屋酸素株式会社
〒455-0801
愛知県名古屋市港区小碓1丁目12番地
Japan

Customers outside Japan should be aware that a return may involve international shipping to Japan unless another authorized return location is provided.

Return eligibility, return shipping costs, withdrawal rights and refunds are governed by our Return and Refund Policy and applicable consumer law.

7. Privacy and Data Protection Requests

For questions concerning personal information or to exercise an applicable privacy right, please contact:

Email: support@gdxxz.shop

Depending on applicable law, you may be able to request matters such as:

  • Access to personal information;

  • Correction of inaccurate information;

  • Deletion of eligible information;

  • Restriction of certain processing;

  • Data portability;

  • Objection to certain processing; or

  • Withdrawal of consent.

To protect personal information, we may reasonably request information necessary to verify your identity before completing certain requests.

Privacy matters are handled in accordance with our Privacy Policy and applicable data protection law.

8. Complaints

If you have a complaint regarding a product, order, payment, shipping, return, refund or other matter relating to our online store, please contact us at:

Email: support@gdxxz.shop
Telephone: +81 90 4861 0859

To help us review the matter, please provide where relevant:

  • Your full name;

  • Order number;

  • A clear description of the issue;

  • The outcome you are requesting; and

  • Any relevant photographs or supporting information.

We will review complaints based on the circumstances and applicable consumer protection requirements.

Submitting a complaint directly to us does not limit any statutory right you may have to contact a competent consumer protection authority, dispute-resolution body or court.

9. Official Contact Details

For official correspondence relating to our online store, please use the following information:

名古屋酸素株式会社
Corporate Number: 1180001007067
Representative: 飯田 哲郎

Registered address:
〒455-0801
愛知県名古屋市港区小碓1丁目12番地
Japan

Email: support@gdxxz.shop
Telephone: +81 90 4861 0859

Please include sufficient information for us to identify the matter to which your correspondence relates.