Hi @andy_mac, you can definitely transfer your current same postpaid mobile number to a prepaid plan. You keep the same sim card. It can take 15mins to 4hrs to process. Here are → Prepaid plans to choose from. Once the service is active as prepaid you then need to → recharge to have balance and to use the service.
However we can`t access customers account details here as this is a public forum. As such your best to contact our support team via the → messaging service to assist you further.