Hey there! We understand your frustration & are truly sorry for the inconvenience! If the Samsung Galaxy S9+ is OEM unlocked (Original Equipment Manufacturer), You'll need a SIM Card. The SIM Card comes in a 3 in 1 SIM KIT. You can order the SIM Card Kit by clicking on the following link: http://boost.co/2o8jFRc. You'll need to enter the device IMEI/DEC number and then click on Continue. If you encounter any issues while ordering the SIM Card, please send us a private message and will be happy to assist you.