Xseries :: X3 Security Code After Update?

ive just updated my nokia x3 but when i updated it ovi suite restored my phone using an old backup file. this backup file held a diffrent security code which ive forgotten. ive spoke to nokia and the care point in sailsbury. the repair point says i shouldnt be charged for the repair. im awaing a responce from nokia, about them charging me if i use the repair option on the website. I dont feel i should pay as ive followed the instructions that ovi suite gave me. i think the repair should be free. i was really shocked after the update and then my phone asked me 4 the code. i thought that the nokia software updates were fully tested before realsed to be installed into customers phones. i cant belive it