Specify whether you accept special instructions
You can choose whether to allow buyers to include special instructions for you on the checkout page. Enabling this feature makes sense for sellers who often require instructions from their buyers (i.e., measurements or color requests), or for sellers who have the time to read and respond to each individual order. Disabling this feature makes sense for large sellers who have automated operations, and who can't make adjustments to orders before they're shipped out. Your preferences will be applied to all of your listings.
This feature is automatically enabled, which means you may receive special instructions from your buyers.
To disable special instructions at checkout:
Click My eBay at the top of most eBay pages. You may be asked to sign in.
Place your pointer over the Account tab, and then click Manage your communications with buyers.
Click the Edit link next to the Manage questions and answers heading.
Clear the Allow buyers to provide special instructions on their order during checkout option.