Approved then Declined

i app**** online for a credit card i sent threw 3 month bank statements and proof of address and copy of id then i called in this morning to find out the status i was told it was approved and when we had to the quote the lady said it was giving her a error message and now when i called in the guy i spoke to said there's no application what happened to it and why does absa do this i even received a sms telling me i was approved and would be called to do a quotation but if i want to call i can call credit card department if absa can't help me i'll close all my accounts cause i use my card everyday i use my account everyday of the month i pay there monthly fees that so much why lie to me ? i'll be switching banks cause if absa can do this now they will do it in the future as well.