Transation on my Investment

Today I noticed that there is an amount withdrawn from my Just Save account on the 30/12/15 and I called the call centre (investments department). They checked for me on my account and I was told to contact Roseli who is the one who performed that transaction on my account on ***. I called her and explained to her about my query. she also directed me to send an e-mail to the funding and savings department. she asked me to give her my Just save account number so she checks while I'm logging a complaint. <br> my problem is: I told her that she is the one who performed the transaction that did not even go to my current account but she wanted me to send a mail and in the mean time she checks what happened. why cant she just help me as I have used my money to call her and she is sending me up and down. these are not free calls we use our money to call them and I want to know what happened to the money in my account.