Okla. Stat. tit. 40, § 40-2-616: Notice of overpayment determination

NOTICE OF OVERPAYMENT DETERMINATION.

A. If the Oklahoma Employment Security Commission or its

representative determines that an individual has been overpaid

unemployment benefits pursuant to Section 2-613 of this title for

fraud overpayment or claimant error overpayment, the individual

shall be sent a notice of overpayment determination. If the

individual disagrees with this determination, the individual may

file an appeal of the determination with the Appeal Tribunal within

twenty (20) days after the date of the mailing of the notice to the

individual's last-known address or, if the notice is not mailed,

within twenty (20) days after the date of the delivery of the

notice. If the individual fails to appeal the determination within

the time provided, without good cause, then the determination will

be deemed final and no further appeal shall be allowed.

B. If the Oklahoma Employment Security Commission or its

representative determines that an individual has been overpaid

unemployment benefits pursuant to paragraph 3 of Section 2-613 of

this title relating to administrative overpayment, the individual

shall be sent a notice of overpayment determination. If the

individual disagrees with this determination, the individual may

file an appeal of the determination with the Appeal Tribunal within

ten (10) days after the date of mailing of the notice to the

individual's last-known address or, if the notice is not mailed,

within ten (10) days after the date of the delivery of the notice.

If the individual fails to appeal the determination within the time

provided, without good cause, the determination will be deemed final

and no further appeal shall be allowed.