[mothered]

Because what if they asked for proof of purchase? i followed a method on here and they linked a fake invoice generator for amazon

You're prepared to do the POP for Amazon, so the same can be done with Logitech- less the hassle of being told to contact the retailer.

Huh interesting , ive seen on the website they say that they check their records of any POP , is that not true?

The same applies with Amazon- they do tend to check POPs every now and then.

That's when your SEing skill set comes Into action, namely to SE them that the POP Is legit.