After purchasing a subscription or a credit pack, you can top up your device via the Bluhuski website or by calling the Bluhuski office during normal opening hours on +44 (0)161 300 3819. When using PAYG Credits (instead of unlimited plans) the credits expire after 12 months if not used. When not in use the device must be powered up every 3 months otherwise our computer system will deactivate the SIM in the device, should this occur please call us on 0161 300 3819 or email support@bluhuski.com.