Terrible service .broken promises

i recently took my samsung s5 for repairs at dion wired in bedfordview , on the 19th of january 2015 i was told that i would have my phone the following weekend dated 24th january 2015, it is now the 30th of january 2015 and i have been calling for the last week every single day to find out what is the status on my repair, no one could help me , i gave them all details needed iemi number ,serial number,and model of the phone and they could not pick it up , promises to call me back i asked to speak to a superior of which i was told by ignatious that he could not give this out to me he needs to assist me , he promised to cal me back in 5 mins , the following day he tells me he can not pick my phone up on their system and that maybe dion wired has not delivered it to them, i have been calling dion wired as well who also could not help me, after all the phone calls made and promises broken and different stories told i recieved a email from admin samsung at 3.19 pm yesterday saying my claim is being processed ,pathetic,i would not advise anybody to use this service and to rather take their mobiles straight through to samsung .