Important If you have data on your old sim card that's important, please take a back up before you ask us to swap to your new sim. Once we've activated your new sim, the old sim card will be deactivated and you won't be able to retrieve any data from it.For more information please visit the Device Help section at www.three.ie/support.
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Remember – it’s the details of your new replacement SIM pack that are needed to complete your request. If you don't have a replacement SIM pack just drop in to your local 3store to collect one.