Yes. A final sequestration order granted by the High Court automatically ends your debt review. The NCR's Withdrawal from Debt Review Guidelines (Circular 001/2021, paragraph 14.1) confirms that once a consumer is sequestrated, the debt review process falls away and the credit bureau status is updated to Status J (Sequestrated).
The reason is that a sequestrated estate is administered under the Insolvency Act 24 of 1936, not the National Credit Act. The trustee of the insolvent estate takes control of the consumer's assets and dealings with creditors, which displaces the debt counsellor's role under the NCA.
Practically, this means the debt counsellor cannot continue restructuring payments, no further Form 17 notices are issued, and the consumer cannot be required to make further debt review payments. Creditors must instead lodge claims against the insolvent estate.
Status J is not the same as having your name cleared. Sequestration carries its own listing on your credit profile and remains until rehabilitation is granted by the High Court. If your goal is to remove the debt review flag without the consequences of sequestration, one of the three NCA exit routes (Section 71, Section 87, or Section 165) is the appropriate path. NDRC offers a free assessment to determine which route applies.