Do not wait to have the phone replaced it is a contract & the phone provided should be adequate lasting 18-36 months. So being without a phone isn't on & you need a replacement device immediately. The contract data, minutes & texts cannot be used without a device & no other device is acceptable as the one you have was researched & required for specific work purposes that you carry out!! DO NOT BE FOBBED OFF! The contract & device are very expensive & failure of any kind within 6 months is without ANY shadow of a doubt completely unacceptable. This will be sorted & failure to do so will result is contact with the telecommunications ombudsman to seek their desicion on the matter of your request. Ask your contract which telecomms provider they are regulated by. As I'm positive there are 2 of them, if they say either then contact both of them & explain that is what you'll be doing & the reason why as no specific answer was provided. I believe that is also wrong & can be punished for misleading behaviour & failing to help you in that request. Have all times, dates, names, pictures & explain how you've tried to come to a solution with them but haven't been able to come to a conclusion that both parties are satisfied with & the proposed outcome of this. Stick to your guns. They've got legal obligation & if push comes to shove & it affects work as your phone is needed for that purpose charge them for damages & loss of income etc. etc.