SDCL § 21-25B-9: Claimant bound by arbitration agreement when claim is filed--Defendant bound after twenty days.

Any person who files a claim pursuant to the provisions of § 21-25B-6 cannot thereafter petition the court to set aside the arbitration agreement. The defendant in any claim may file an application under § 21-25A-8 anytime within twenty days after being served with the claim and if he fails to do so he cannot thereafter petition the court to set aside the arbitration agreement.