I´m sorry that has happened. Do you still have your old one? Can you use that one and we will fix it when I come in 2 weeks.

Olanlardan dolayi ozur dilerim. Eskisi hala sizdemi? Sizdeyse onu kullanabilirsiniz ben iki hafta sonra geldigimde biz tamir ederiz(bozuk olani).

Thank you - but why are there 2 words in brackets, do I need to include those as well when I send the text?

Have just worked it out - it means the one that is broken!! Thank you for that - need to be specific about which phone will get fixed.

Thank you 

it means (broken one) you dont really need to use it  .

Use this then

Sizdeyse eskisini kullanabilirsiniz ben iki hafta sonra geldigimde bozuk olani biz tamir ederiz.

 Does this not say ´I will fix it´ not ´we will fix it´?

Thank you very much  

he uses when `I` come 

it means it cant be fixed without a person. it might be a company or something but its ok if we use `biz` too

but i prefer to use `ben`

I think they wanted to say ´we will fix it (both of us) when I come.´ so surely it should be ´ederiz´.