California Code, Code of Civil Procedure - CCP § 403.060

(a) For reclassification of a case from a limited civil case to an unlimited civil case, a fee shall be charged as provided in Section 70619 of the Government Code. This reclassification fee shall be in addition to any other fee due for that appearance or filing in a limited civil case. No additional amounts shall be charged for appearance or filing fees paid prior to reclassification. After reclassification, the fees ordinarily charged in an unlimited case shall be charged.

(b) If a reclassification fee is required and is not paid at the time an amended complaint or other initial pleading, a cross-complaint, or a stipulation for reclassification is filed under Section 403.020, 403.030, or 403.050, the clerk shall not reclassify the case and the case shall remain and proceed as a limited civil case.

(c) No fee shall be charged for reclassification of a case from an unlimited civil case to a limited civil case. The fees ordinarily required for filing or appearing in a limited civil case shall be charged at the time of filing a pleading that reclassifies the case. Parties are not entitled to a refund of the difference between any fees previously paid for appearance or filing in an unlimited civil case and the fees due in a limited civil case. After reclassification, the fees ordinarily charged in a limited civil case shall be charged.