Dog question

Has anyone’s vet ever gave double boosters shots by error. Was everything ok with your dog.

Back story “: two weeks ago was my doggy’s yearly shots and I was told he was getting his rabies and borda* shots but yesterday he got the same lepto and Lyme shots again. Today when I asked if that was supposed to happen they told me that they gave him the shots in error that he was booked for rabies and borda* so he is booked in for his rabies for two weeks from now.