your allowed to work upto 20hrs a week on a student visa..
but the gov says that "thou In order to meet the requirement of 15 hours organised day time study per week, hours spent on a work placement (paid or unpaid) can be taken into account if they are a necessary part of the course and are undertaken with the agreement of the educational establishment concerned."
meaning that your suppose to study for 15hrs a week min, but time you spent working on your placement can count as study time.
but to me if your paid, your working, and 20+15 is 35hrs, and you've breeched your student visa, i'm sure the gov will not let people on NVQ work for 35/40hrs aweek on a student visa, and if i'm right, you could face a ban from coming back to the uk,,
so check with IND before you start doing anything..
