Director Payslip Expenses Issue

Hi Guys,

I have an appointment in 2 weeks for my Tier-1 General renewal. I have been contracting via my limited company for the past year (the renewal consideration period).

There wer times when I didn't use the company credit card for expenses but paid by cash. And in that case I re-imbursed the expense from the company bank account.
Unfortunately, a mistake I made was that I used same bank-transaction for my director salary and the reimbursed expenses. And the payslips my accountant gave me has only the highlight only the gross-salary (before tax & NI) and the Net-Salary(after tax and NI). This results in a mis-match of bank transaction amount to net-salary.

My accountant, says it is not-possible to add the expenses to the payslip, i'm guessing due to his software. I have asked him for an extra letter that highlights these clearly.
Will this letter suffice? or do I need the amount to be clearly indicated on the payslip?