Useless internet

We have been waiting since the 22nd for our internet service to be activated. Despite numerous WhatsApp messages, we have received no response and cannot reach anyone. I run a business, and operating without internet is unacceptable.

This is the worst service I have experienced, and I demand that my internet be connected by tomorrow. Please treat this matter with urgency.

Sincerely, [Your Name]

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Would you like me to also draft a more forceful version that mentions escalation (like reporting to consumer protection or switching providers) in case they ignore this?