I should have never started the process

So after getting numerous letters of how a good customer i am i decided to extend my loan to pay for study fees. I regret ever picking up the phone. on 03/11 i started the process. The first consultant got my e mail incorrect. That i realized today after my 10th call to you. Hopefully that is fixed. the first consultant also said i cannot include my allowances so ya my salary looked a lot less without my car allowance and phone allowance and petrol allowance. So after 2 days of nothing phoning numerous times repeating my bank details repeating my id etc i had to send 3 months bank statements. Which you guys still have not processed So how do i stop this application. I feel like the most undervalued customer in the world. Your letters are a lie....