Cash Crusaders employees using our goods.

In the month of may i went to cashcrusaders steeldale to leave my phone as ii was in trouble financially. I had to leave it there up until now as I did not have money to take it out.. I took it out got home connected it to the wifi now there's a new Google account om my phone (twiggy)@ gmail.com.. I went back to the shop ask the manager why someone there used my phone as I was the first and only owner of this phone.. This is so unacceptable as we leave our goods there thinking it's in good hands.. only to find out that the people working in the shop uses our goods without our consent..