Well they request from me some hardware reciepts and electricity reciepts that i dont have or maybe i would not be able to get them.
So if i dont answer on all of their requests does it mean that i might loose my bitcoins?
Get someone to scan it for you (or to take a photo, nearly everyone has a smartphone, so it can't be a problem), and send it to you as soon as possible.
Last year, it has started with the identification of the card holders. After the XAPO app has been updated to ask for a 'security' selfie, mandatory (before it was optional)... You have to prove your identity (ID card, driving licence etc...) and your location (electricity, water, gas, etc... bill, they don't like phone or internet bills).
You will lose your bitcoins if you don't do what they say. This is a web wallet, people are always adviced to keep small amount on the web wallet, because of things like this one. You can decide if the amount of coins you have on XAPO wallet worth the price of identifying yourself at their system.