Customer support

Returns & Refunds

A clear review process for cancellations, returns and refunds — with one important rule: wait for an approved RMA number before sending anything back.

Request a Return Contact Support
Return authorization

How the RMA process works

This protects the shipment record and makes sure your parcel is sent to the correct approved warehouse.

  1. 01

    Submit the request

    Choose the order, list the product and quantity, explain the issue and attach clear photo or video evidence.

  2. 02

    Wait for review

    Our team checks eligibility and evidence. If approved, your account shows an RMA number and return instructions.

  3. 03

    Ship only after approval

    Write the RMA number on and inside the parcel, then ship only to the warehouse address in the approval instructions.

No RMA, no authorized return Unapproved parcels, parcels without a valid RMA number, or parcels sent to an unapproved address may be rejected.
Policy details

Before you request a return

01

Order Cancellation

  • Before shipment: You may request order cancellation. If goods are already prepared for dispatch, a handling fee will be charged.
  • After shipment: Unconditional cancellation is not available once the parcel has been dispatched. Cross-border shipments cannot be intercepted in transit.
  • If the buyer refuses import duties, rejects delivery or does not complete customs clearance, all return-shipping costs, storage fees and customs penalties are borne by the buyer and may be deducted from any refund.
02

Return & Exchange Eligibility

Requests should be submitted within 14 calendar days after receiving the parcel. Items must meet every condition:

  • Unused, unwelded, unpowered-on and physically undamaged
  • All components and original packaging intact
  • Clear photo or video evidence supplied
  • An RMA number issued by Towinchip before shipment
03

Acceptable Returns

  • Wrong item shipped or missing quantity
  • Factory-defective products
  • Goods do not match the product specifications listed on our website
04

Non-returnable Items & Circumstances

  • Wrong part selected by the buyer
  • Components soldered, tested, powered on or damaged after delivery
  • Parcels returned because the buyer refused import tax
  • Custom-programmed, firmware-burned or custom-made bulk orders
  • Requests submitted after the 14-day receiving window
05

Shipping Cost Responsibility

  • Our fault (defect or wrong shipment): We cover return freight to China and the replacement shipment cost.
  • Buyer-initiated return exceptionally approved: Outbound and return freight are paid by the buyer; a restocking fee may apply.
  • Parcel rejected at customs by the buyer: Original shipping is non-refundable and extra return charges are deducted from the refund.
06

Refund Procedure

  1. Contact our support team and provide supporting evidence.
  2. We review the request and issue an RMA number once approved.
  3. Send the items to the approved warehouse address.
  4. After inspection, the refund is processed within 7–15 working days.

Funds are returned to the original payment account. Settlement time depends on the payment provider.

07 · Customs Rejection Notice

Cross-border orders are shipped under DAP terms

All cross-border orders are shipped on DAP (Delivered at Place, Incoterms 2020) terms. If a shipment is returned or destroyed because the buyer refuses to pay import duties or does not cooperate with customs clearance, the initial shipping cost is non-refundable and all related extra charges will be deducted from the refund.

Ready to begin?

Submit your request from My Account

Track the review status, RMA number and approved return instructions in one place.

Open Return Center