I've been using OC for twenty years, too. They're absolutely fine if they have your item in stock and there is nothing wrong with it. But I did have to chase them recently for over a month about a monitor on back order - same deal, really...I didn't mind waiting, but I didn't like the radio silence.
And also about 15 years ago they refused to accept a CPU I returned as it was DOA. By which I mean a bunch of pins were bent. They said I must have installed it incorrectly, which is not true. I think they sent me someone else's return without having checked it first. A very long argument over several weeks, usually waiting 3-4 days for them to respond each time. Eventually they accepted the return. This experience burned me, so now I film every unboxing of expensive items I receive. Quite paranoid.
So yeah, the writing was on the wall for 3080. Don't know why I ordered from here.