<b>What do you get:</b><br /> 1. A trio size (nano/micro/std) SIM which will fit all phones, make sure your device is GSM unlocked either 3G or 4G compatible. <br />2. Once activated, a Plan bundle of 20 GB data, unlimited voice mins, and unlimited texts for 30 days can be used <br /><br /><b>How to activate:</b><br /> 1. For activation, send us message through Amazon with SIM number. <br />2. Mobile number is on the SIM Card.<br /> 3. Activation may take up to 48 hours. <br /><br /><b>Check Balance:</b><br /> To check the data balance, text Balance to 20202.<b><br /> <br />O2 customer services:</b> <br />From your O2 phone dial 4445 (Free). From abroad +44 7860 980 202 (international rates apply) <b><br /><br />Any restrictions:</b><br /> 1. Use in an unlocked GSM Phone only <br />2. 4G signal is available dependent on geographical locations, see O2 website for further information<br /> 3. Please note you cannot use the unlimited mins/ unlimited texts to call or text US numbers.<br />4. When in UK, the calling and texting can be used within UK only.<br /><br /><b>Customer Service:</b><br />Please reach out to us through Amazon if you need any customer support. We are open 7 days a week during USA business hours.