I bought a wireless keyboard and mouse from a local retailer. After 2 months the mouse is becoming unresponsive and the keyboard misses keystrokes. Also the battery life is about 3 days. Basically the product is useless to me as it is just to frustrating to use. There is a 6 months return policy, so when I returned the unit to the retailer they said they needed to send it in for “testing”. A few days later they called to tell me there is no fault and the unit is functioning as advertised, and my expectation of how the unit should function is irrelevant. So what I want to know is how do I “break” it properly so the retailer is forced to give me my refund. Obviously there can be no sign of abuse (smashed to pieces, water damage, etc.), even though smashing the unit would give me great pleasure, getting my money back is what I really want. The unit takes 2 AAA 1.2volt batteries.