I am writing to express my deep dissatisfaction with a recent experience involving your services. I have discovered that I have been charged twice for the same product or service, which I find unacceptable. Additionally, I have not received the necessary support to resolve this issue, and the product or service in question does not function as it should. The treatment I have received has been neglectful and far below the standards I expect from a company that prides itself on providing quality service. This situation has not only shaken my confidence in your services but has also caused significant frustration as a customer. I demand an immediate resolution to this issue, including a refund for the duplicate charge and assurance that the purchased product or service will work as promised. If I do not receive a satisfactory response, I will be forced to take further action to protect my rights as a consumer. I look forward to your prompt response to resolve this matter.