discount for airline crew?

Hello,my name is Efe, i wonder discount for airline crew , i'm cabin attendant in Turkish Airlines so next month i will visit your store in Boston , please give me certain information or discount rate about this topic.i'd like to buy iphone 13 pro 512gb unlocked , and also i have iphone 7 now if i trade this phone for new one could you give me motherboard change documents ?i need this documents for my country goverment mobil device registered , i hope explained this situtation ,

thank you very much