Discovery Bank useless at responding to queries

I opened a virtual account in August to book flights with my discount because it was done online I couldn't add the friend referral code, ok fine I was ok with that, I then tried to upgrade to a gold suite account so I could start earning miles and was declined 8 times, every day I spent over 30mins on the phone with a agent trying to figure out why they kept declining me, every time there was a different reason, eventually after 2 weeks somebody with a brain said I need to send thru my husband's bank statement as we are married on COP to prove he pays the bond and miraculously after that I was approved, lots of time and unnecessary money spent on calls. I have logged a call 3 weeks ago and called twice to follow up and still nobody has bothered to come back to me about my salary switching miles, I've never been so disappointed in a bank in my entire life, the service is terrible beyond words.