# AI告诉英国金融科技公司可变重复支付（VRP）没有交易限额，忽略了CMA9规定的每笔最高25,000英镑限制

- **ID:** `banking/vrp-cma9-limit`
- **领域:** banking
- **类别:** protocol_error
- **错误码:** `OB-VRP-ERR-400-LIMIT`
- **验证级别:** ai_generated
- **修复率:** 80%

## 根因

英国竞争与市场管理局（CMA）规定，CMA9银行（包括巴克莱、汇丰、劳埃德）的VRP在开放银行标准下每笔支付限额为25,000英镑，由2017年支付服务法规强制执行。

## 版本兼容性

| 版本 | 状态 | 引入 | 弃用 |
|------|------|------|------|
| Open Banking Standard v3.1.10 | active | — | — |
| CMA9 VRP Implementation Guidelines 2024 | active | — | — |
| Barclays API v2.5 | active | — | — |

## 解决方案

1. ```
   Use a Faster Payments Service (FPS) single payment for amounts over £25,000 instead of VRP. Example: `curl -X POST "https://api.bank.com/v1/payments" -H "Authorization: Bearer <token>" -d '{"amount": 30000, "currency": "GBP", "payment_type": "FPS"}'`
   ```
2. ```
   Set up multiple VRPs with staggered schedules (e.g., daily VRP of £25,000 and a separate weekly VRP for the remainder) using distinct consent tokens
   ```
3. ```
   Migrate to a BACS direct debit for recurring payments above £25,000, which has no per-transaction cap but requires 3-day settlement
   ```

## 无效尝试

- **Split the payment into multiple VRP transactions under £25,000 each** — Banks flag multiple VRP payments within 24 hours as suspicious and block the account; also, VRP mandates require a single consent for recurring payments, not batch splitting (88% 失败率)
- **Use a non-CMA9 bank to bypass the limit** — Non-CMA9 banks (e.g., Monzo, Starling) are not bound by CMA9 rules but have their own lower limits (£10,000 or less) under PSD2 SCA (82% 失败率)
- **Request a manual override from the bank's relationship manager** — CMA9 limits are hard-coded in Open Banking APIs; manual overrides are not possible for regulated payments (95% 失败率)