It depends. If you are expecting mail from a Kenyan firm or an international organization, just fill out your PO Box Number in the Address 1 line.If you are expecting mail from For DHL, you need to fill out an exact location. Probably an address where you work or where a family member of yours works.For example it is easier for them to deliver to you C/O Mr/Ms/Mrs XYZ who works at ABC Company on Mombasa Rd opposite Kapa Industries.