The details pertaining to cheque book/date of issue/cheques cleared can be checked in a friendly manner with the bank/banker, by a/c holder.
The question formulated by you is highly confusing and does not make any sense. It is not known as to why you are worried about cheques which are 8 month old as they are time barred? Were there blank cheques? Were the cheques issued with your pro note or a covering note? What prevents you from issuing the stop payment notice to the bank?
In addition, there are options under CPC to prevent the cheques from being utilized.
A banjer is only concerned whether the cheque is in order for NIAct and machines do not have logic and relationship. Please do not blame any bank, while you wanted to maintain your close relationship. Relationships are not concerned in financial matters and it is not proper to blame the bank to maintain such relationships.
Good comment; ‘ NO relationship in Financial matters’ and when machines are handling transactions record, it is better to maintain and handle relations with bank and bankers, handling the accounts…..
"Relationship Banking' is in fact Mission of some banks, now many of the customers are not even aware of the location of their bank branches in internet age.