Worst customer service ever for any banking house.

On Monday 06/11/2017 i called the customer service on ********** 111 and asked to be transferred to the student loans dept, after waiting 30min on the line i ended the call and called the same number. I told the lady who redirects the calls to the department what my experience was and she said i can wait again or someone can call me back. I didn't want to risk the chance of waiting 30min again, so i told her that they can call me back. Today is Friday 10/11/2017 and no one has contacted me back. As i'm writing this complaint i am waiting again for 20min and counting. Airtime is expensive and so is time. This isn't the first time this has happened, i have never waited less than 15min and when i askd to have my statements emailed to me monthly, this also hasn't happened. This banking house should be disciplined or taken off the market. Even the app has no visual representation of your transaction history between certain dates, i.e 24th of the month till say 30th of the month, and in this time charges are made for finance charging and that doesnt show, all other banks show a continuous transaction history. This is so frustrating. Its been 23min now again.