Bank Account Rec - Account Recievable

Ok, Hopefully I can explain this well.

Over the course of 6 months we had continuous sales with one main customer. Lets just call it " cust A"

Their was a large amount of discrepencies in "cust A" pay summaries so long story short, I wanted to reverse EVERYTHING from this vendor to do with these sales and enter, the sales, payments, and other misc expenses directly related to the pay summaries all in separate  GENERAL journal entries. (Meaning I did unlink the accounts receivable to be able to post to it, and then relinked it)

I am now satisfied with the way that I have entered the sales for this customer. And I thought after going through reports that all was well with the way I voided one and entered the other.

When I voided all the sales to cust A it made a CreditNote for each sale, I read that I could get rid of these by going through the payment screen and selecting them all. By getting rid of them, I mean I don't want my system to be accounting for that money at all! Did I do this wrong?

The problem is, I had already reconciled the bank account for the month that those sales / deposits were for. So I thought ok, I need to redo all the bank reconciliation from the point when they started. So I cleared the bank rec and started from the first month those sales would have effected. But no matter which month I try to do, I am not stuck with the problem of having a matching 'discrepancy' and 'unresolved' number. I am also noticing that all the payments from cust A that I voided still appear on the  bank rec screen...

Going forward I have a huge discrepancy  wheather I start from where I left off on my bank rec or clear and try to start over. ( I have it backed up to where is was before I cleared the bank rec so thats not an issue)

Also, the sales cross over a fiscal year.

Any help would is appreciated.