Blocked Card!

I just cant get help from your call centre, my credit card was blocked for reasons I still don't understand. I'm supposed to have an available balance but nothing shows on my card. I phoned yesterday and was transferred between agents endlessly, credit card centre to ***** centre then back to credit card centre, and so on, again and again. eventually I was helped and was told that my card is unblocked. I checked today and it is still blocked. I tried calling again but the same story, being pushed from one division to another, having to explain my story over and over again. Why cant one person just help me and get this sorted?? I still haven't been helped because after the 6th or 7th time i was transferred, I gave up. Why are your consultants at the call centre so useless? Why cant anyone just help me. It seems like no one wants to do any work and just tries to pass it on.