Pay issues

I'm just wondering if anyone else had this issue and what was done. So I've been working only about a month so far. I worked 32 hours between the last 2 weeks(i get paid bi-weekly) I'm getting to get 20 a week but it's very hard with not getting that many tasks. Anyways I got an email saying that their data shows I only worked 19 hours between the last 2 weeks so they are cutting over 10 hours off!!!! Which is completely not true!! I log my hours as I'm working and I work every day. This makes no sense! And they said I put my training hours(10m) in wrong but I looked and it shows I put in 11:50am-12pm and for some reason the system clocked that as .166667. But that's not my fault?? I put in exactly 10 minutes, that's a system glitch or something. I've been emailing everyone I can about this issue because I can not afford to lose 10 hours especially because I did 100% work those 10 hours they are claiming i didn't work.