$PORTAL $portal team, I noticed that the value of my investment has dropped sharply from 2.8 to 0.5, and this abnormal drop is beyond the range of normal market fluctuations. I request that you immediately provide a detailed explanation and evidence of this drop to prove that your services or products do not violate any market rules or engage in fraud. In accordance with the Consumer Rights Protection Law, if you fail to provide a reasonable explanation or compensation, I will reserve the right to take legal action, including but not limited to filing a lawsuit to claim compensation for all losses caused to me by your improper behavior. Please take this serious financial issue seriously and contact me immediately to avoid further legal disputes.