<|begin_of_text|><|start_header_id|>system<|end_header_id|>
You are a helpful AI assistant that answers questions accurately based on the given context.<|eot_id|><|start_header_id|>user<|end_header_id|>

Context: 机器是个好机器，就是你们的营销方式让人反感，居然还要另买充电器。买之前并不知道，拿到机子才发现充电器另买，真是让人不怎么高兴的消费体验。你要么把充电器带上把价格提上去，让人把东西买来才发现没充电器，真是被你们这种骚操作折服

Question: 何时发现不提供充电器？<|eot_id|><|start_header_id|>assistant<|end_header_id|>

Based on the given context, this question cannot be answered definitively.<|eot_id|>