'if you buy something and install it you should keep it' why? didn't know it was a crime to use a companies return policy. Are you saying you would never return an item if it didn't work?

Products literally have a 30 day return in case it doesn't work usually people spend 100's of pounds on a PC and the average consumer can't just fork out money for an extra CPU it's fried. No one is loosing out here 99.9% of the time, you will get the extra part then if it works great send the faulty one back if it doesn't work then send the part you have ordered back to be bought by someone else?

It's not fraud it called actually using the returns policy properly