Okla. Stat. tit. 12, § 12-937: Attorney fees taxed as costs in actions to collect on

checks.

In any civil action to enforce payment of or to collect upon a

check, draft or similar bill of exchange drawn on a bank or

otherwise, payment upon which said instrument has been refused

because of insufficient funds or no account, the party prevailing on

such cause of action shall be awarded a reasonable attorney's fee,

such fee to be assessed by the court as costs against the losing

party; provided, that said fee shall not be allowed unless the

plaintiff offers proof during the trial of said action that prior to

the filing of the petition in the action demand for payment of the

check, draft or similar bill of exchange had been made upon the

defendant by registered or certified mail not less than ten (10)

days prior to the filing of such suit.