discovery bank poor service

Opened a Discovery bank and yesterday opened a Discovery savings account and transferred a substantial amount,I was considering moving my salary and other investments to Discovery so to keep everything with one bank instead spreading it with other banks and incurring more charges.So I also app**** for an increase in credit for a low amount and it was declined based on my affordability which is laughable as my debt is low and the amount calculated for fuel etc is overrated as I have a company vehicle and done pay for fuel never did for the last 15 years,also my spouse pays for life which Discovery should know as the policy is with them.Callee the consultant today she can't assist and says I must lodge a dispute,so I must beg Discovery for credit...will be settling accounts with Discovery which is minimal and close my Discovery bank account,thank you but no thank you Discovery bank...