[mothered]

the CS said that he will contact the responsible department again and mention that I am adamant about the evidence.

Good, your request Is moving forward.

Be sure to remain firm about collecting the evidence.

Lastly he said that although this department is not contactable I can certainly file a complaint and would be handled with a different department.

If the department relating to the conversation In the first quote above does not provide the evidence, request your claim be escalated to a senior level.