Poor/lack of feedback

I app**** for a credit card about 3 weeks ago online.That first week I received prompt communication via sms on what was going on. After that there was no communication till today. I dont know how many times I have called the bank trying to follow up and only to get the call centre agents tell me I will get a call soon and that all they can see is it has been approved and nothing more. The one agent even promised to escalate the matter as he also felt it had been too long. There have been other calls that I have had to make post that and still no response.I am just gatvol at the poor service for a bank that prides itself in fast responses for home loans...and the irritating thing is that this affects my credit scoring so I cant just make another application elsewhere. If I dont get a response by tomorrow though, they can keep that credit card!