A high price can generate expectations about assistance, explanations and availability of staff. The company should know which elements the customer associates with the proposal and which they can support. An undefined offer can create a distance between what is promised and what is actually delivered.
I propose to make the services included and those that require a specific request recognizable. Clarity is also about timing and modalities. A curated aesthetic presentation may accompany the offer, but it does not replace the information necessary to understand its concrete content.
In a hypothetical example, the customer can expect quick assistance for an adjustment after the purchase. If the service requires technical time, they must be explained during the sale. The quality of the relationship depends on the consistency between expectation, availability and response received.
Subsequent questions can help revise the proposal. The comparison should distinguish a reasonably generated request from a further performance. A premium service becomes sustainable when the customer can recognize what they buy and the business can organize what it has promised.