I'm 99% convinced they purposely try to avoid unlocking accounts for as long as they possibly can. After failing to respond for so long they asked for the same ID photo they asked for earlier with no reasonable explanation as for why the other one wasn't good enough. They didn't even make it clear whether they are denying receiving it (I'm sure they received it) or they are just trying to nitpick some minor detail. It is common for them to ask for the same things they've already received over and over again. This is a uniquely horrible company.
Welcome to the world of crypto! Nothing is ever as simple as it should be. I can totaly understand how frustrating this must be I am going thru similare process with Wirex They keep rejecting my documnets to verify my account and lift the limits on it. First time they told me it was becasue I used a PO BOX (turns out the PO Box address is my electricity company address) so that was fine a mistake was made, I re-submitted them.. I woke up today to a notice saying my documents were (Unaceptable)
So again.. I re-scanned them and sent them..
It seems like its a never ending process. and I can assure you kraken will do the same you just need to keep on at them untill you get the desired result. If not ask for there company regestration number and CEO contact and make them aware you will seek legal advice if they do not pull there socks up!