Hello, I am in Dar es Salaam and would like to enquire about [air-conditioner brand, model and number of units]. The problem is [symptoms and when they started]. Please confirm whether you can handle it, what information or on-site inspection is needed, and the inspection, travel and declined-repair charges. Please quote the current fault repair separately from any optional annual maintenance plan. For the annual plan, list the covered units, validity period, number of visits, work at each visit, and whether parts, consumables and fault repairs cost extra. If installation or relocation is involved, my requirements are [details or not needed]; please list the materials and work separately. Please state any estimate conditions and obtain my approval before additional work. This is an enquiry only.