Generally, if you have filed a proper billing dispute with the credit union, you would not need to pay—and the credit union cannot try to collect—any portion of any required payment that you believe is related to the disputed amount while the dispute is being investigated. This includes related finance or other charges.
However, the credit union can act to collect any undisputed portion of the item or bill.
However, the credit union can act to collect any undisputed portion of the item or bill.