Treat the round balloon and a hanging banner as separate artwork surfaces. Give the supplier exact wording for each, identify which direction each should face and request a proof showing the proposed arrangement.
Write Balloon beside the logo or wording intended for the curved envelope. Write Banner beside any text intended for the panel below it. If you only need one surface, say so. This prevents a designer from assuming that one file should be repeated everywhere.
Explain how customers approach
Describe the direction from which visitors reach your entrance. Use labelled photographs to distinguish a front view from a side view. Ask the supplier which banner arrangement the quoted model supports before finalising the layout.
Approve the arrangement as well as the spelling
Request a proof that identifies the balloon artwork and banner artwork separately. Check brand colours, punctuation and reading direction. Keep a dated copy of the approved proof with the quote so later changes are traceable.