"i understand that your situation is really unsettling. The Kindle and the Kindle Voyage are completely different devices, even if they are both Kindles and they are both black. It is absolutely unsatisfying, I understand that, but you cannot blame iFixit for buying the wrong sparepart or using a wrong guide."
Don't you think that adding a clarification to the Kindle 7 guides that it is not the Kindle 7 Voyage would be more helpful than telling me they are both Kindles and both black?

You could have mentioned that this is not a Kindle Voyage 7th Generation! Your instructions have had me trying to prise the back off one of those when it just needs the top panel removing and 4 screws undoing. Thanks to ifu##it.com, I have ruined a Kindle. Thanks very much, I won't be ordering any more tools from you!