Contact the debtor only, Monday through Friday at 08.00-20.00 o'clock. Holidays 08.00-18.00 continuous-time only, contact accounts receivable an appropriate number of times.
Contact receivables Monday to Friday 08:00 to 20:00 local time clock holiday demand was only 08:00 to 18:00, tapeworm against the debtor in a reasonable amount of time.