The police seized a bathing center for sweeping pornography and found my WeChat payment record eight months ago. Now the mobile phone informs me to assist in the investigation. What should I do?

Only payment records are not sufficient evidence. If I call you to summon you, you can't refuse without just reason. Look carefully (for good reason).

Because only the payment record is incomplete, they have to take your transcript to become evidence. To put it bluntly, you are allowed to betray yourself.

How can I not betray myself? This is a professional study.