7.0.3 Upgrade

I need someone to upgrade my website from 7.0.2 to 7.0.3

There is a bug in my current website which stops me from adding "New Item" in the field builder, and I'm hoping this upgrade will sort the problem out.

I need someone to complete this upgrade who can guarantee that they will not ruin my site!  I've paid for work to be done on my site before and the person messed up the site and I had to start all over again (3 months work down the pan)!

Payment upon completion only.