Garden Tiller Purchase- need help

I purchased a garden tiller the middle of April, 2009. After about 40 days, it began leaking oil and one of the tines came off.

I took it to a small engine repair shop which was on Lowes list of repair shops. It is now almost 60 days since it has been there and they are saying they cannot get the parts. I have talked to numerous personnel at Lowes and I am not getting anywhere. In fact, one employee told me, there is nothing else we can do for you.

Duh, I want my money back or my tiller. Pretty soon I will need a snow blower, not a garden tiller. Needless to say, I am pissed. I am going to take this to my local newspapers and to the t.v. stations, which services about 4 Lowes stores. I only want my tiller or my money back. Someone please help me......