Upon payment in full of all charges for lots, including lot care if this has been contracted for, the city shall give to the purchaser a deed or certificate of ownership to the burial lot or plot in question, subject to all existing and future cemetery rules and regulations. If the purchaser has purchased lot care, the city shall in the deed or certificate of ownership agree to furnish lot care to the lot or lots described in the deed or certificate, subject to the limitations set out in Section 2.48.560. The deeds or certificates shall state that no sale or transfer thereof or of the property therein described shall be valid or binding until approved by the city and recorded in the city cemetery records.