Where is the customer service

I have app**** for an American Express credit card online more than 2 weeks ago. Eventually about 5 days after, i received an SMS that its approved and to send my documents. I did that on 14 December. I have heard nothing since. I phoned on the 17th - and the call centre advised that someone tried to contact me but couldnt get hold of me. I had no calls come through. She then said to wait 2 days for a call back. Friday they phoned me ONCE- i was in a meeting and could not answer. They didnt bother to phone back. I phoned atleast 6 times to try and return the call - only to be advised that they will contact me, i must wait. Friday nothing. Monday nothing. Today I phone again, and get told that they will phone when they phone and to keep my phone with me. So my phone has to be glued to my hand for how many more weeks? This is terrible service. How can they not be contacted? And if this is how long it takes to get it approved how long will it take to get the card? February 2016? If I dont receive some sort of feedback today - I will cancel the application and apply with standard bank - as they assure me this wait is not standard with them. <br> I look forward to your response.