No. If WeChat payment fails without deduction, it will not be deducted again. However, in some cases, there may be some abnormal problems, such as system errors and network problems, which lead to the failure to complete the payment operation in time. At this time, it may be necessary to contact WeChat customer service or bank customer service for specific information to avoid repeated deduction after payment. At the same time, you can also check the payment record in the bill paid by WeChat to further confirm whether the deduction is successful.