1. It is always a good thing mentioning the deadline of your offer. It is common knowledge that people literally hate to know that they are missing out on something. Therefore mentioning a deadline will make them more/ less compelled to act. E.g. ‘Hurry- competition closes next Saturday! Call/Visit/Email today to reserve your place. Make sure that the customer knows how to contact you and try to make it a few different ways.
2. ‘Hurry- competition closes next Friday! Call/Visit/Email today to ensure you don’t miss out!” Ensure that you tell the customer how to contact you and try to make it a few different ways.