The most difficult thing in business today is setting up a bank account!
We have reminded firms of this many times, particularly when setting up from a network style arrangement with a new Limited company.  Some say that all firms should today have two bank accounts, the second in case the first pulls out.  Most IFAs are low risk – but the banks see them as high risk due to money laundering controls.  If your IFA controls are weak, the big banks risk getting fined for potentially allowing you to accept money from the wrong people.   
“putting the firm at risk of being used for money laundering purposes etc….”
Now as if to prove our point, I attach the very first page of the HSBC bank account opening form online for small businesses….