Hello Subvolatil,
Thanks for the reply.When I initially setup the wallet on my iphone I was not asked to pair the device at any point. It was just a simple download of the blockchain wallet. It was in use for the last 4 months (with no problems) until a few days ago when i tried sending the last 0.7995 btc to my new android phone wallet. During the process the Iphone would constantly hang and just not recover, and when i turn restart the phone (which was the only way to recover) all the transaction details were wiped off showing it as a new empty wallet. I tried sending 5 to 6 times but failed all attempts. So as of now it looks like a clean empty wallet with no balance and no previous transactions.
Well according to this link
http://www.reddit.com/r/Bitcoin/comments/1d0155/a_brief_analysis_of_the_security_of/blockchain's app stores wallet,identifier etc in plaintext files, and iphone backsup them on pc where itunes is installed,so if you synced your iphone you will might get your bitcoins back.
Ps: Try to contact piuk, he will help you for sure.
https://bitcointalk.org/index.php?action=profile;u=17928