Does the questioner want to ask "What should I do if my colleague fills me in as the emergency contact for the credit card created by my colleague, but now my colleague cannot contact me and I am taken into custody?"

1. First contact colleagues and their families to explain the situation and request assistance to resolve misunderstandings and release.

2. Then cooperate with the police and provide evidence and explanations to prove that you were wrongly taken to the detention center in order to strive for release as soon as possible.