Communication breakdown

An overdraft- facility was arranged last year October till end of February 2018. On 7 February the bank closed the facility without notification. When I visited the bank on the morning of 7 February 2018, they admitted that they made a mistake and that I have to reapply to open the facility again to the end of the month - which was done while I was in the bank. Then the documents was send to "credit". Where ever these guys are? and since then everything is at credit with no outcome!! Telephones are not working or nobody answers. When you go to the bank the person is on training or she is on lunch, 15:00 on the afternoon. Trying to make contact with the branch manager is a futile exercise.