My directions text gives my postcode and the instruction to call from the corner of A street and B street where Landmark X is (so basically an exact point where two streets intersect), and they still get it wrong.
I get them calling from the other end of A street so I have no idea where they are, or they walk around the corner to the other end of B street nowhere near my building. Or they go over to Landmark X and wander about looking lost, which is my personal favourite (along with the Journey Narrators who talk constantly and won't listen).
I was once working from a hotel which was opposite one with a similar name (same chain), and made it very clear in texts which one I was in with a brief description and also saying 'the abc hotel NOT the xyz hotel'. At least a couple still fucked it up, and I threw one out after he was so late I couldn't do the 45 minutes he'd booked and he refused to pay for it. Muppet.