The specific steps to close Alibaba operation hosting service may vary depending on personal circumstances and specific contracts. Generally speaking, you can follow the following steps:

1. **Contact the operation hosting service provider**: First, you need to contact your operation hosting service provider to inform them that you want to close the service and ask about the specific process and required documents for the closure.

2. **Provide closure application materials**: According to the requirements of the operation hosting service provider, you may need to provide documents or information related to the closure application, such as a written notice of contract termination, a settlement list, etc.

3. **Follow the contract agreement**: According to the terms of the contract signed between you and the operation hosting service provider, follow the closure process and time requirements agreed in the contract.

4. **Settle payments**: Confirm that all accounts between you and the operation hosting service provider have been settled and ensure that there are no unsettled fees or payments.

5. **Complete the closure process**: After consultation and communication with the operation hosting service provider, complete all necessary procedures, confirm the closure of the service, and terminate the contract.

Please note that shutting down the hosting service may involve some contractual terms and legal issues. It is recommended that you read the contract terms carefully before shutting down to ensure that you follow the relevant regulations and procedures. If you have any questions or need further assistance, it is recommended that you contact the service provider's customer service department. If the specific situation is more complicated, you can also seek help from a legal advisor.