It doesn't seem to be a big problem, because forms printed on carbonless carbon paper usually need to indicate how many copies there are. If you have a copy at hand, you can infer that there may be duplication. But in case the records are different, this one in your hand can be used as a disproof.

Of course, if you don't have it, there's no need to worry. Let's wait until things happen. Answering legal questions is usually aimed at what has happened, or to prevent it from happening, but it is meaningless to judge the possibility of what has happened.