I am just worried about being grilled, and massive over payments.
I am coming off TC as have a small income now, however I am so worried about over payments also from when DH wage went up, there was a terrifying thread on here the other day about being up front, telling them as soon as circs change but then getting massive bill 
DH wage went from something about 20 thou to 25....we got £57 ish a week - sometimes less. Now I want to come off altogether and wonder how much I should be trying to save to cover any so called over payments!