I got an offer for a summer internship a while back. I wasnt really happy about the pay but still I accepted it cus well I was happy to atleast get an offer. But recently I found out that someone else got the same internship in the same team for a higher pay. Would it be wise to ask the HR about the pay? And what are the chances that I get a pay hike provided that I never negotiated my stipend in the first place.