Asunción, ___ de __________ de 2026
Señor/a:
[Nombre del destinatario]
[Cargo / Institución]
Presente
Ref.: Commercial Complaint Letter
Dear Sir/Madam:
I file a complaint regarding [Product/service: Ex. equipment purchased], due to [Reason: Ex. malfunction], requesting a solution within a reasonable timeframe.
Sincerely,
Firma: _____________________________
Aclaración: [Nombre completo]
C.I./RUC: [Número]