Transfer of shares

I have been appointed as an agent of an executor of an estate. I have been trying to transfer 175 and 350 shares to one of the Beneficiaries. All correspondence required regarding the transfer was posted to Link and received by Link during May 2015. My first call at the end of May to Link confirmed that all documents was in order and that they would proceed with transfer of the shares. During June and July I made follow-up calls to the call centre enquiring about the status of the transfer. On both these occasions I was informed that everything was in order for the 350 shares, but that the 175 shares has not been updated with the Estate details. The agents could see that everything required was attached on the system, but that the \back office"has not updated the account for the 175 shares. On both these occasions"