refer to contract ref.No6261001.00 and amendment no.1 on dated 27 may 2014 respectively,in Clause 2 of amendment No.1 stated that "Completion of the works,with the exception of the office renovation works : is on July 31,2014" and lause 3 stated that"in case of delay in achieving the milestone dates stated in clause 2 a penalty in the amount of 48,800 (forty eight thousands and eight hudred) THB per day of delay shall be forfeited by TDC ..... and the new aforementioned penalty will effective since date august 01,2014 onwards"