Step-by-step explanation:
Dear Chairman: Thank you so much for not providing electricity in our school. Your foresight is making our education all but impossible.
Actually, I think you mean complaint, not compliment, and the answer is, you don't. What you do is convince the person who runs the school that the lack of electricity will not go unnoticed by the chairman and the chairman will replace them because they aren't doing their job by not providing electricity. That person will get nervous and start pestering the chairman to electrify the school.