Refer INVOICE_NNGP-P2015-10-1804201

Refer INVOICE_NNGP-P2015-10-18042016 are message missing reference and the truth is GTS/2015-E003R4 (see attached) dated 16/02/2015 and I sent the new invoice to editing reference.
Reference quotation GTS/2015-E003R4 dated 16/02/2015 is specified in bottom of page 2 are exclusion “ ANY AND ALL TAX INSIDE LAOS PDR”
and reference the older payment (1st Payment ,2nd Payment and 3rd Payment) Installation Preventive & Corrective Maintenance (Lao PDR) management.