Dear Khun George,
Regarding to your understanding, I'd like to inform you about this such case.
1. At first time,the Auditor accepted the work done for construction from Claim No.1 - No.6 as details that we submited to him. Then he requested for the Certificate of K.Jaray who is the Quality Surveyor but we did not yet submit to him. Thus he cannot accept the work done of DADB.
2. I tried to find out the solution to solve this problem so I asked to the Auditor if I hire the Appraisal Company to evaluate the construction, can he accept or not? Then the Auditor accept for this solution.
3. I consulted this such case with the American Appraisal and they said that they can do it if we submit the Construction Progress report them.