Bank of China Meituan 99 yuan cash coupon cannot be used.

1. The user did not use Meituan payment or bank card payment. Meituan cash coupons are limited to Meituan. If users use WeChat payment and Alipay payment methods, they cannot use Meituan cash coupons.

2. The user's Meituan client version is too low. Users need to update the Meituan client to the latest version before trying to use Meituan cash coupons.

3. The amount paid by the user is equal to the face value of the cash coupon of Meituan.

4. Meituan cash coupon expires or the user has not activated Meituan credit card. If the user's Meituan cash coupon is provided by applying for Meituan credit card, it is necessary to activate Meituan credit card to use Meituan cash coupon normally.

5. Meituan cash coupons are not applicable to the current category.