Can somebody give me the right story please?

I called to enquire how I would go about increasing my credit limit. I have phoned several times, out of the times I have phoned, on getting through to an agent, the phone gets dropped. This happen three times. <br> <br> After eventually getting through to someone, on 4 different occasions I am told 4 different processes on how to increase the limit. Nobody knows the correct answer<br> <br> Can somebody please just help me? I'm not asking for a kidney here.<br> <br> I request that a efficient and competent person gets back to me with a response.