In advance of what?
This is a rebate of indirect taxes already paid. For example, we are currently being rebated the overtaxation we suffered throughout 2012. Note that there is a half year delay before this even commences. Think what this means - on average, the government had the use of half that overtaxation for 2012 and all of it for half of 2013. In total, that equates to use of all our overtaxation for a year.
Originally, we would have then been rebated our 2012 overataxation at the start of July 2013 in one lump sum.
But the government developed the scheme that they would dole it out in monthly payments over the following 12 months. This meant the government now has the use of our money (on average) for a further half year and now they get to use our 2012 overtaxation for (on average) a year and a half.
Here we have the final insult. If one were to be foolish enough to elect to receive one's overtaxation as a lump sum, they will keep their money for another entire year. If this scheme were in operation today and one were to make this choice, they would not get their 2012 overtaxation rebated until July 2014 and the government would have use of THEIR overtaxation for a full two years.
Never underestimate the contempt governemnts have for the poor.