I stayed with this company for about one year. In general it's OK. Recently I found a better deal and cancelled the service one day before the day I was billed. However, the next day they still charged me. I contacted the customer service and they couldn't refund me. Their explanation is the billing cycle start date is 15 days earlier than the payment day for this 'prepaid' service. And the company's policy is that there is no full or partial refund if you cancel the service earlier. My understanding is that for 'prepaid' plan, the service starts on the day I pay. Apparently this is not what they think and do. I thought this is dodgy when a customer leaves and they charge you for another month. I'll stay away with this company.