Phone was not delivered

I took my phone(tablet) last year in October 2015 for repairs. Ever since last year I have not received it.<br> Went to their branch at Wynberg this month (7 April 2016)and they told me that it was dispatched from their warehouse in March but still I have not received it. They made arrangements that the phone will be delivered to me on the 11/12 April 2016 but still I have not received it. Now, I am back at their branch and they are telling me that the phone is at their warehouse. May you please assist me on the matter.