See the following forms:
(have something done)
(get something done)
these two forms usually tends more to be in a passive sense, in other words, they are used when you arrange for somebody to do something for you. e.g.:I had my car repaired: this means that you arranged for somebody to repair your car for you. i.e. your car was repaired by someone(NOT by you).
I got my car repaired: exactly sameBut, assume I said 'I had/got my car to repair', it doesn't sound good at all. Thus, same thing applys to your example.