I am in search of sample or model procedures/policies related to ITM programs. Thank you for any help!

We have had our current IOTA procedures in place for years.  We are receiving push back from our newer clients on the processing of posting the service charge and interest and then reversing the entries the following day after funneling through our Master IOTA account.  Does anyone have any updated instructions that would make this invisible on the statement or, at least, show reversals on the same day?  Our longer term account holders have grown accustomed to the process and have no issue.  I reached out to the Florida Bar and they stated our process was acceptable, just hard to sell to those who are used to not seeing the activity postings.  Any feedback would be greatly appreciated.