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It depends upon what you disputed as inaccurate, and what was determined in the Notice of Results of Reinvestigation that was received from the CRA.
Disputes pertan to the investigation of specific inaccuracies in reported information.
If the dispute only related to the accuracy of information that did not relate to the validity of the debt, then the outcome of the dispute would not mandate any deletion of the entire collection. What was disputed, and did the Notice of Results state that the CRA deleted the entire colleciton?
The deletion of the collection may have been voluntary by the debt collection, and could be reinserted by them or another debt collector.
The issue of validity of the debt is the subject of a possible DV, which is separate from issues of accuracy of credit reporting.
If you still contest the validty of the debt, then you should consider sending a timely DV to impose a cease collection bar.