About applying for evidence in criminal cases! urgent

I have this experience. Mobile companies generally do not provide such evidence. There is a way to solve this problem. One way is that the case-handling personnel go to the self-service printing terminal to print and explain the situation as evidence. The other is that if it is particularly important evidence, after the court accepts it, it must apply to the court for retrieval, but it still needs to be printed by itself to explain the situation. In short, the mobile company just doesn't stamp.