
I have had a similar experience just recently. I let somebody have a pup on payment terms (my suggestion, not theirs I have to add) - I felt sure it was a good home, the person was pretty wellknown in dogs, and back when I got my first pup of the breed there were pups available much sooner than I had expected, so the breeder offered me the same; pay in instalments. I felt like I wanted to offer someone the same kindness that had been offered to me.
Long story short, got two small payments then no more. No explanations, no apologies -and when I queried it was just told "will pay you asap". After close to a year I had enough and sent a letter stating I wanted the dog returned immediately or the full price paid within 21 days, or I'd take legal action. 2 days later the dog was back with me. (When I checked through his paperwork, my letter was in with it, ripped into pieces.)
Had this person TOLD me they were having troubles, apologised, made any effort to let me know they were trying their best, I would not have minded. We could have sorted something out. It was the fact that I was just being ignored that got to me. The owner was clearly upset at returning the dog, but as no efforts had been made to ensure they could keep it, I felt I had no choice. I certainly paid for my pup as soon as I possibly could all those years ago, and had I had problems, I would have made very sure I kept the breeder informed as no way would I have wanted to lose the dog.