No Feedback on Credit Card Application - 7 working days since sms stating someone will be in contact soon

I app**** for a Credit Card online on Saturday 23 February 2019, it was "Pre-Approved" online and I submitted all the required documents online at the same time and I received an email stating I will be contacted to confirm the application. I then received an sms on Monday 25 February 2019 stating that my application is being reviewed and an agent will be in touch soon. Today is 5 March 2019 and no one has contacted me, I have called numerous times and each time I am on hold for 30 - 60 mins when I get transferred to the sales department because no one seems to pick up anything on the system. I also get told different times lines from each agent either 3 - 5 working days or 5 - 7 working days even as high as 10 - 15 working days. Nowhere is the actual timeline communicated in writing. It is now the 7th working day since I received the sms someone will be in touch soon. Clearly my soon and your soon are two very different things. I have also sent emails to complaints and general communication with no response. I cant even decide to cancel this because no one actually seems to know where it stands. Every time i do speak to someone they say it will be escalated and someone will be in contact first time I heard that was last Thursday 28 February 2019 and I am still waiting. The Feedback on this application has been pathetic. I have a Ref number should it be required.