[Date]
[Name],
Company and Address
Dear Mr. / Ms. ——– [Name],
Thank you for your prompt attention regarding our malfunctioning [Product, exp. Cold Elite Air Conditioner unit] and for arranging a service technician to arrive at our premises to perform a repair.
I look forward to seeing ————[him/her] on ———-[Day & Date] at ——- am / pm [Time].
I indeed look forward to having our [Product] functioning properly again.
Thanking you,
[Name & Signature]