Its been a week, still waiting!!!

I took in my iPhone 4 for repair because it didn't want to switch on... the 26th of January 2015 , Waited more then an hour & no call: so I went back to them & they couldn't fix my phone \because according to them the battery was removed & damaged by me"but they checked my phone in & started to work on it without consulting with me that the phone \""was\"" damaged!!!! (they even soldered on my phone... After consulting with the manager: she said she will make get my phone back to me fixed or will let me know... She phoned me the next day informing me that they'll need more time... BUT from there on I had to phone in and find out what's going on (she informed me every time that the technician that's working on my phone is not at work & will be back tomorrow) I phoned them for the last time today & she said she will get back to me but it already past 18:00 and nothing heard from them?<br> <br> What should I do: its frustrating not knowing exactly what's going on & that I didn't get a spare phone"