I do not think that it will be good following up.
Your people is so lacking to take an action since July’14. (over a year) and alert us once all write off.
Fyi, our KPI will be taken the write off after overdue > 3 months.
We will work out and find to arrange the payment w/out guarantee. However, this is the last chance for all vendors who are careless to follow up on billing processes. It is repeated that all pending job order > 3 months will be terminated from our system.