Reporting Changes to Coursework [UCSD]

Recently, I talked with an admissions officer at UCSD about dropping a class that won’t effect igetc, major coursework, and my 60 unit requirement. Needless to say, she was adamant about how it will not effect my status at all. However, I forgot to ask is there any formal way I can report this dropped class as TAU has closed already. Does anyone have any experience about reporting changes to their work for the Spring semester? Or do people call, get told the information, and just leave it at that? I feel like I’m supposed to inform and update this change because calling an admissions officer without giving them my information isn’t really informing them.