Xperia PLAY :: Can't Update R800a From 2.3.2 To 2.3.3 In Mexico Help!!

I just bought my play like a week ago and i actually love it at first. As i continued using my phone i saw the wifi was having problems, i thought it was because of my rooter but no. I tried with other devices (iphone) and (lg optimus 2x) and they worked perfectly. There i realized it wans't my rooter's problem but my phone's wifi. My wifi fades out, it's to unstable and it connects and disconnects ramdomly for no reason. I was looking for info in the net and i found there is this 2.3.3 update and i saw the bugs it fixes and well there it was wifi stability fixed and also it has a facebook integration. I was actually pretty happy when i saw this but i tried OTA pc companion and Update service and they all say the same lastest software installed. Though it said i had the latest software it was false i still have 2.3.2 and i'm getting pretty upset with this i can't use my phone as i wish to. You know when i bought was because i already have had an xperia x10 and it was a pretty good phone though i had to use flashtool with it to install multitouch because SE never released that update here in mexico. Well evertything was fine with my xperia x10 but then the play came out and i was like whoah perfect but yeah i got it and actually it has a nice camera nice hardware i love the controls evertything but my wifi ***** and it gets me mad and upset. I expect a response why hasn't sony released 2.3.3 in mexicoo ??? and when r we having this update my last 2 phones i've had to root because the software updates were never released and i actually don't want to do this with my play i wan't to keep it as it is without rooting it. please don't tell i'll have to root or unlock the bootloader with this phone to make it from r800a into a r800i to update an enjoy the 2.3.3.