Okla. Stat. tit. 40, § 40-2-603: Appeal tribunal

APPEAL TRIBUNAL.

The claimant or any other party entitled to notice of a

determination may file an appeal from the determination with the

appeal tribunal within ten (10) calendar days after the date of

mailing of the notice to the claimant's or other party's last-known

address or, if the notice is not mailed, within ten (10) calendar

days after the date of delivery of the notice. The claimant or

other party may file an appeal in any manner allowed by Section 1-

224 of this title or by telephone to the Commission's call center.

In order to be considered timely, filing of an appeal made by

telephone through a claims representative must be completed before

the end of normal business hours.