Complaint on software update

I took my phone in for a software upgrade at D and D East london, i explained what my problem was with the phone and they took it in , my phone is 4.2.2 version and i needed a 4.3. version in order for me to download a app for the tracker for my insurance, i was given the phone only to find out that it was still on 4.2.2 and everything was wiped off my phone. my problem is then what is it that was done with the phone if it is still on 4.2.2 version worse of all no doesn have any information. i am very dissapointed and to make things worse this was not explained to me when i took the phone i had to call in again after seeing that the version is still the same.