How to say no without saying no.
So a Free Person has told you to do something that violates your restrictions, what is a kajira to to? Since kajira are not to say no to the command of a Free, you must find a way to respectfully decline to perform.
If a Master commands something which contradicts your restrictions, politely inform the Master of specifically what restriction it contradicts, express a desire to serve the Master in a manner which fits within your restrictions and a regret that you are unable to fulfill that command at this time. Most Masters will understand that girls are placed under restrictions of various sorts at different times and will accept this. If the Master remains insistent, explain that you will let your Master know of his displeasure with your level of service, but that your first duty is to obey the command of your owner. Make a notecard of the conversation.
If the Master continues to persist, then request permission to leave the area so as not to continue to displease the Master. Then leave the area.