Hi darylgoh87, You do not need to return the physical sim card. Once you have changed to e-SIM, the physical sim card is unable to use anymore. Thank you.
You can walk-in to any of our Digi Store, darylgoh87. Kindly check the nearest Digi Store from the link below. Tick 'Digi Store' under the 'OUTLET TYPE' ya.https://new.digi.com.my/support/digi-store