That's a bit of a twist, Ken. Did you contact Free Now directly to find out and, if so, were there no GDPR restrictions on what they could tell you... or, if not, where did you get the alleged solution?
In any event, it seems to somewhat contradict what Free Now told the client i.e. that he was charged for a Premium Service in error.
Did you hire the Swiss taxi from Free Now, T1990, and if so, did the fare include a fee for Premium Services and if so, how much was attributable to said Premium Services? In Steve's case he found that normal fare was c.35 with the additional €40 being attributed by Free Now to Premium Services. Did you consider yourself as lacking class for checking the fare or is it even possible for the working class to lack class?