How would the formulas go in the below paragraph?

This letter will confirm that Vision Financial Corp will accept =c9 as full
payment of debt; you may take advantage of this special offer immediately by
contacting us at . Once credit or check payment by phone is taken, processed
and applied to the account, the account will be considered settled in full.
=A9 will be released of any further financial liability converning repayment
of this account.