There are no travel restrictions whilst bankrupt, so making the trip is not an issue; depending on the cost of the flight, this may be a problem.
If the trip is to be costly, the Receiver would need to allow you to spend that much money. If the trip is relatively inexpensive, it would not be an issue.
The trip would not delay any discharge, but if the Receiver needed to contact you, they do need the details to do this. I cannot say why or if they would phone, but you are obligated to update them with your details.
I hope this has answered your question.
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