you could not pay me to go back with 3, never again!

First of all my brand new phone had some issue the screen just kept going white so sent it in to be fixed no problems, get a phone call 2 weeks later with them wanting to charge me over $100 for repairs I said it was under warrenty im not paying i shouldnt have to anyway they sent the phone back and it still had the same issues plus my back cover didnt go on properly anymore (they had bent it slightly as it was metal) i rang up to complain and they said they wanted to charge me for the repairs because of the back cover that THEY had damaged. I was fuming, i cancelled all my services with 3 then got a $3000 bill 9 months later because although they cancelled my service they kept billing me, it took months and months of calling them daily, for hours on end, being passed from person to person and lots of tears to sort it out in the end it ended up going on my credit rating because they refused to do anything and convieniantly couldnt find any of the recorded phone calls