# Account services

Manage payments, verification, invoices and referrals.

## Sign-in and recovery

Complete email or phone verification according to the methods currently offered. SMS login, phone binding and phone password recovery are available only when enabled.

Do not share verification codes. Accounts with multi-factor authentication must still complete the required checks. API keys do not replace account passwords.

## Wallet and orders

Choose an available payment method in the [wallet](https://api.xsopc.com/wallet), confirming the payment amount and credited quota. Administrators control which payment channels are open.

If payment succeeds but the balance has not updated, check the order status and allow time for the payment notification. Avoid repeated payments. Provide the order ID, time and a redacted payment receipt when seeking help.

## Invoice applications

Open [invoice applications](https://api.xsopc.com/invoices) from the personal menu. Select eligible paid CNY orders that have not been invoiced. Applications currently use whole orders; thresholds, eligible order categories and invoice types follow the page's settings.

Bonus quota, referral rewards, redemption codes and purchases made with account balance are not invoiced again as cash payments. Enter the correct title, tax ID and email. Finance confirms the invoice item and tax treatment.

Track the review status and correct returned information. After staff issue and upload the invoice, download it from the application record. Email delivery depends on the platform's configuration. Failed email delivery does not prevent downloading an uploaded issued invoice.

## Referrals

If enabled for your account, visit [referrals](https://api.xsopc.com/promotion) for invitation links, rewards and conditions. Reward calculation, balance transfers and withdrawals follow the published rules. Rewards are not equivalent to a cash top-up.

## Support and privacy

Use published contact details or [support](https://api.xsopc.com/support). Include time, affected page, request or order ID and a redacted screenshot.

Read the [user agreement](https://api.xsopc.com/user-agreement) and [privacy policy](https://api.xsopc.com/privacy-policy). This documentation does not replace those formal texts.