Complaint Regarding Service and Final Billing

I am writing to formally raise my dissatisfaction regarding the service I have received from Rain. I cancelled my Rain WiFi service on 1 January 2026. I have since received confirmation that my final payment will be due at the end of January 2026 and not at the end of February 2026. Given that the service was cancelled at the beginning of January, I do not understand why any payment would be expected beyond January 2026, and I certainly do not accept any billing for the end of February 2026. The overall service experience has been disappointing, and this billing issue has further contributed to my dissatisfaction. I request written confirmation that my account has been properly cancelled and that January 2026 will be the final payment, with no additional charges to follow. Unfortunately, due to my experience, I will not be recommending your services to anyone going forward.