Review Barcalys Need to pay attention to Customer Service

I have been a high-ranking customer of Barclays Bank for over fifteen years. I have been trying to get in touch with the Manager of the Head office of Barclays bank Ghana in Accra and none of the many landline phones on their website seems to be working: either the lines are engaged or they are on English premier league. I have just sent an email requesting for a contact of the Boss-,and I need a reply. Please, Barclays Bank Ghana seems to be gradually losing its reputation of good customer service (unknown to them) and the earlier they paid attention to customer care especially responding to customers phone calls, the better it is for the bank.