Pending Refund / Non-Existent Customer Sevice

A refund has been due since the beginning of March from me&you mobile. Banking details have been submitted, and various calls have been made to follow-up. Copies of ID and banking confirmation letters have been sent. The latest excuse is that the finance system is down and that refunds can't be processed. Yesterday I was promised that someone would phone back with feedback after I had sent an e-mail and made another phone call asking that management or finance phone back and not someone from the customer services department. This is not the first time that we've experienced issues with me&you mobile. There was a continuous delay with activating sim cards as well once received and there was never an explanation given as to what the issue was with that. Once again, management was not available to answer for the issue. I find the lack of proper customer service and feedback unacceptable and that this should be a clear sign that there are problems within the processes that you follow.