The entire retirement process involves paperwork to start your retirement benefits and terminate your employee status. If you will lose your health insurance benefits upon retirement, your employer must notify you and give information about extending coverage, which you mush sign and acknowledge.
A cashier's check or cheque is a check guaranteed by a bank, drawn on the bank's own funds and signed by a cashier. Cashier's checks are treated as guaranteed funds because the bank, rather than the purchaser, is responsible for paying the amount. They are commonly required for real estate and brokerage transactions.
Talk to your bank, they should be able to cancel the cashier's check. They should have given you a customer copy that would have the ck# on it so they can stop payment the cashier's check. If not, they should have record of the cashier's check you purchased.es, you can. That is the whole purpose of a cashiers check.... it's safer than cash. Go to the bank with the receipt you got when you purchased the check and tell them to put a stop on the check.