# Delivery Expectations * Contract will close within 5 minutes of startup if incorrect pool destination has been entered. Please make sure that your target pool, account and worker names are accurate. There are no fee refunds for mis-entered pool destination * Contract will close within 15 minutes of startup if no hashrate is being delivered to the Validator node. This is usually due to issues with the source hashrate and shows that the Validator is ensuring the contract is fulfilled properly. Marketplace purchase fees are non-refundable and not prorated * Please expect a 30 minute validation / warmup period when hashrate is flowing for full hashrate delivery to your desired pool. This is typical in Crypto Mining as there is a handshake and ramp-up period between the miners and the pool. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.lumerin-ai.cloud/buyer-web-marketplace/delivery-expectations.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.