Default Marked sides (Question)

Hi guys

Had a bit of unlucky day today and have dropped my xperia z on a hard floor for the first time after trying to keep it in perfect condition after a quick search I noticed that the top side near the headphone flap had a small scuff mark on it (the rubberish part) I was wondering if there was anything I could do to get them removed? I've had repainting suggested to me but I don't think it's the best thing to try and thought I'd ask here as you guys have allot more knowledge about these things

Thanks in advance

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