POst is a bit unclear. Was he given a court date to appear for termination? Did he schedule it to terminate probation early?
If he was given a date to appear either by probation or the court which he did not request, he might be looking at a warrant.
Why doesn't this person call his attorney for some advice?
The above is not intended as legal advice. The response does not constitute the creation of an attorney client relationship as this forum does not provide for a confidential communication.
Every case varies depending on the law and the facts. Because questions often fail to disclose important facts, these 'answers' cannot and should not be relied upon as a replacement for a full or complete review of an actual case by a retained attorney. It is axiomatic that one only 'gets what they pay for', and this is one of those situations where such a phrase generally applies.
More detail is needed but from what you have posted, a warrant likely has issued. He/she should consult an attorney about filing a motion to quash and recall the warrant. www.galivanlaw.net