The results we show you, only show you how likely you are to be accepted. Unfortunately, we are not able to guarantee any application.
If you see a 70% chance of being accepted, this means that 70% of people with a similar credit history have been accepted for this product and 30% have been rejected.
Unfortunately, lenders do not provide any information as to why an application has been rejected as this is their own commercial decision to make. However, each lender will tend to look for a certain set of criteria when choosing who to lend to. Each lender will also perform their own set of checks and if you do not satisfy these then your application may also be rejected.