How this works
Why Nothing Here Is Called Fixed
A fixed rate is the most reassuring phrase in this trade and this desk cannot say it. Not out of caution: it would be a promise about somebody else's tariff, made by a party with no power to hold anybody to it.
What the phrase actually promises
Two separate things, and they are usually heard as one.
The first is that the number will not move between the quote and the journey. The second is that the number covers what happens on the day, including the parts nobody can predict.
A desk can only promise the first if it sets the number. It can only promise the second if it can absorb the difference when the day goes badly. This desk does neither.
Who could say it
An operator with its own vehicles and its own tariff, absorbing waiting and a tolled road into a single figure it publishes and honors. That is a real and common way to run a transfer business, and there is nothing wrong with it.
The party saying it has to be the party carrying the risk. When a booking desk says it, the desk is describing an arrangement it has not made.
What is offered instead
A written range, with the parts named. It is a weaker thing to be offered and it has one property a fixed rate from the wrong party does not: whoever gives it can stand behind every word.
Where this leaves the reader who wanted the phrase
A reader who came looking for that phrase will not find it here, and will find this page instead. That is deliberate. A desk that cannot hold a rate should say so on a page of its own rather than let the absence pass without comment.
Most objections to the phrase are about what the road does: traffic, a held flight, a wait that nobody planned. This refusal is about who owns the tariff, which is a different objection: even on a day when nothing goes wrong, this desk would be quoting a price it has no authority to hold.