Preamble: “whereas the purchaser invited Vision Kam-Jay for the supply of two additional Inverters (15KVA) for the Server rooms at Niger House and River Plaza Office Annex at the same unit cost as in the initial contract for the supply, installation and maintenance of Power and Associated Equipment at ECOWAS Commission Headquarters in Abuja on 10th September 2014”. Paragraph 15.1 GCC on “Contract Price” states: “Prices charged by the Supplier for the goods supplied and related services performed under the contract shall not vary from the prices quoted by the Supplier in its bid with the exception of any price adjustment authorized in the SCC”. Paragraph 9.1 SCC states: “The Applicable law to the Contract will be the ECOWAS Tenders Code, the ECOWAS Community Law of Contract”. The Applicants claim that at the time of signing the contract, they believed the Respondent presented the agreed price unit in tandem with the contract of 10 th September 2014 and that it was on the strength of these facts the Applicants issued the Respondents a Job Completion Certificate on 18th December 2014. The Applicants contend that the Respondent by its actions contravened the provisions of Articles 45 (3) (a) of the ECOWAS Tender Code which provides that: “Procurement may be made by direct contracting for goods, works and services in the following cases only: 4