On October 31st, according to The Paper news, in April 2021, Hang purchased a "mining machine" platform and 64 hard drives from Chen via WeChat for a total of 429,000 yuan. After Hang paid the full amount, he asked Chen about the equipment configuration, but Chen refused to fulfill the delivery obligation. Later, Hang requested a partial refund of 180,000 yuan and requested the delivery of the remaining 64 hard drives. Chen returned the 180,000 yuan but still did not deliver the goods. Hang filed a lawsuit and requested that the court order the defendant Chen to return the payment of 249,000 yuan and pay for interest losses.