The request shall be sent to the beneficiary or mortgagee, or agent which it might designate for the purpose of receiving loan payments, at the address specified for the receipt of these payments, if known, or, if not known, at the address shown on the recorded deed of trust or mortgage.
The notice shall be given by personal service, or by deposit in the mail, first-class postage paid. Following the recording of any notice of default pursuant to Section 2924 with respect to the same delinquency, no notice or further notice shall be required pursuant to this section.
Ca. Civ. Code § 2924e