Honkai Star Rail Acheron Concert Cosplay Costume

Processing Time: 1–3 business days (customized or pre-order items may take longer).

Shipping Methods:
Expedited: 3–7 days (fast, premium service).
Standard: 10–15 days (cost-effective, trackable, reliable).

Shipping Costs: Free standard shipping on orders over $150. Calculated automatically at checkout.

Tracking: You’ll receive a tracking number via email once your order ships.

Notes: Delivery times are estimates and may vary due to holidays, weather, or unforeseen events. Total delivery time for pre-order/custom items = production time + transit time.

• 30-Day After-Sale Service: Request returns, exchanges, or refunds within 30 days of receiving your order.
  
• How to Request: Contact service@osias.com with your order number, issue, photos (if applicable), and your request.
  
• Return Conditions: Items must be unused, unwashed, undamaged, with original packaging. Try-ons are allowed if kept clean.
  
• Exclusions: Undergarments, socks, stockings, wigs, hairpieces, one-time wear items, or altered/damaged items cannot be returned.
  
• Refunds: Once approved, refunds are issued to the original payment method. Partial refunds may apply for international returns.
  
• Exchanges: Only for defective or damaged items. Buyer pays return and reshipment costs.
  
• Size Issues: Returns/exchanges accepted within 30 days; buyer pays return shipping.
  
• Missing or Defective Items: Contact us with photos within 30 days; we’ll resend or refund.
  
• Return Shipping Costs: International return shipping is expensive—please contact us first. Costs are generally non-refundable.
  

📧 Questions? Email service@osias.com anytime.

To make sure your order arrives safely and in perfect condition, OSIAS uses stronger, upgraded packaging materials.For cosplay costumes, we pack with triple-layer heavy-duty cardboard boxes to resist pressure and protect your outfit.For wigs, we use high-quality PET plastic, which keeps the shape and shields against damage during shipping.

What Makes OSIAS Products Stand Out?
Our products feature exclusive original designs, with sizes and fits tailored to suit more customers. All our items are photographed using real models, without studio lighting, to authentically showcase the details and features, ensuring you get exactly what you see.

How to Change My Address?
Contact us within 24 hours via email (service@osias.com) or live chat with your order number and the correct address details. If the order has already shipped, we cannot change the address.

How to Cancel My Order?
Email us within 24 hours with your order number and recipient details. If the order has been shipped, we cannot cancel it.

When Will My Order Ship?
In-stock items ship within 1-3 business days. During holidays, weekends, or special events, processing may be delayed. If you order pre-sale items with in-stock items, your order will be held until all items are in stock.

Promoter/Model Opportunities
Contact us directly via email (service@osias.com) or Instagram for details on how to become an OSIAS promoter or model.

Do You Offer Custom Services?
Currently, we do not offer custom services.

Missing or Defective Items?
Contact us immediately via email or chat for assistance.