If you cancel your enrollment via Studielink before the start of the academic year (before September 1 for the September intake or before February 1 for the February intake) you do not need to pay a pre-master's fee.
If you have transferred the pre-master's fee in full, you will be reimbursed for the full amount.
If you have issued a direct debit authorization to pay the pre-master's fee, you will not be reimbursed. The full amount will only be debited once the academic year has started (the end of September for the September intake and the end of February for the February intake). Now that you have canceled your enrollment, this amount will not be debited, and reimbursement is therefore not applicable.