Seperate invoices on same name and same date

Sir/Madam,

I am working as an insurance surveyor... I found a case where my client's (sole propritorship, dealing in tobaccos) accounts were 'REJECTED' by the chanrtered accountant on the ground that there has been 6-7 separate and successive invoices raised on the name of some customers on the same date (but of different amounts). My client did this a number of times in his accounts and the chartered accountant 'rejected' his accounts saying that he has manipulated the accounts. 

Is it possible to 'reject' somebody's accounts in such a way?? Or a qualified report could have beenmore appropritate?? My survey is hugely dependent on the report of the CA. Kindly give your suggestions..