Printing system and control method therefor

A control method for a printing system including an administrator terminal, a user terminal, and an information processor that provides a printing service related to a printer configured to be used by the user terminal, the control method comprising:

• transmitting, by the information processor, based on an expiration date of a contract for the printing service, request information for requesting response information related to the contract to the administrator terminal;
• receiving, by the information processor, the response information from the administrator terminal;
• transmitting, by the information processor, notification information related to the contract to the user terminal when the information processor does not execute, based on the response information from the administrator terminal, continuation processing for the contract;
• receiving, by the user terminal, the notification information from the information processor;
• transmitting, by the user terminal, inquiry information for inquiring about continuation of the contract to the administrator terminal when an inquiry instruction for continuation of the contract is given based on the notification information;
• receiving, by the administrator terminal, the inquiry information from the user terminal;
• transmitting, by the administrator terminal, continuation information for continuing the contract to the information processor when an instruction for continuation of the contract is given based on the inquiry information;
• receiving, by the information processor, the continuation information from the administrator terminal;
• and
• executing, by the information processor, based on the continuation information, the continuation processing and granting permission to use the printing service to the user terminal.