Called while I was on another call and couldn't answer. When I called the number back, their machine identified them as UAC but I have no idea who that is or what business they have with me. Both calls I attempted were unable to reach a live person before being disconnected by their machine 2 or 3 minutes into the call.
I discovered through Google that UAC probably stands for Universal Acceptance Corporation. I learned from subsequent calls that UAC apparently extended credit to a relative or ours who tends to be financially irresponsible. I've basically told UAC that I have no special helpful insights to offer them. If it had been me, I would have turned the relative down. UAC is probably out of luck.