I wouldn't CHARGE them anything, but I would give NOTICE that your time is billable for responding, should they not return an acceptable answer to your questions.
Accounting and surety. That's all you should be focused on.
Printed copy · Anthology Volume 6, page 85Printed copy from The Tender For Law Anthology, Volume 6, page 85 (printed 13 June 2014). Added by this site; not part of the Facebook export.