I went into a sofa store in the UK a few years ago and gave them some details like my email address for a potential purchase which they input into a tablet. So

I went into a sofa store in the UK a few years ago and gave them some details like my email address for a potential purchase which they input into a tablet. Some time later, I started receiving emails about my sofa purchase, addressed nice and personally to "Paul" (not my name) and then some time after that, emails about my "finance agreement". It was all legit, except for the fact that none of it was intended for me. Someone had been in to the store after me, and somehow they'd entered my email address on this guys form, he's never had any of his documents about his finance agreement, or when his sofa was going to be delivered, etc, because I had it all. Hope the guy got his sofa in the end, but company made it almost impossible for me to tell them they were sending all this stuff to the wrong email, in the end I just blocked them.