Received a faulty replacement phone

After loads of emails about my Z1 not being waterproof as advertised Sony said they would replace the phone. I was under the impression this meant a new phone, I later found out this meant a refurbished phone- I let it be as I was already more than 2 months without a phone. I received the phone last week Wednesday and by Saturday(14th) morning the \new"phone I was given began to act up. <br> <br> I feel this is not my fault as I barely had the phone a week- I feel its only fair that Sony give me a new phone for all this trouble they have put me through with.<br> <br> I am disappointed that after mailing Sony on Saturday when I saw the problem I didnt get a reply. Please Sony give me a working phone! One that will last me longer than 3 days and will carry me to my next upgrade"""