Misleading

I signed up for wireless wifi on a special Afrihost is running which you get a free router. Received router on Monday, connected it at night and logged on to my cell to check how it was working which was literally 2 min. Closed my app and logged back on at 1am for 15min then went to bed. At 1:30am I received an email stating I had used 7gigs of data!!!! Again at 2:15am I received another email another 3gigs data gone!!! All this time I'm alsleep only to see the emails in the morning! I immediately call Afrihost to complain and to say if that's how it works I do not want this package as it is less than 24hours. The guy I spoke to had all kinds of excuses of how so many gigs can be used up. I explained to him that I use 1gig a week with Vodacom so how can I possibly use 10gigs in one night and 3gigs while I was asleep!!! He then said he would email my log in times which I only recieved a day later. It showed I was logged in for an hour and used 7gigs and the second session 15min 3gigs. Firstly I was only on for a few min and 10 gigs that is insane!!!! No downloads or videos. Tried calling again but the guys at support are terrible. Eventually I get a call from someone senior saying the gigs were used up so if I cancel I will have to pay R999 for the router. I explained that I informed them in less than 24hours from receiving it that I did not want it but he would not help. This morning I see my debit order has gone through for the month already! I will be taking this up with customer protection!