Hello mr Daniel.
You booked 2 from our total 6 seats of the Retro Ebike Tour.
In the additional info of the tour description says that:
-- Not recommended for travellers that are shorter than 1.60 cm since our bikes are medium to high seated.
However, we gave to your wife an extra small size (child size) trekking ebike (not retro which you had booked) so that she could join the tour, however she still could not.
We did the same to you as on the retro bikes you booked you could not ride them either.
The tour was only offered in English.
When you noticed it was only in English, you decided to participate.
The viator's policy does not recommend giving you any money back as it is your (your wife's) inability to participate in the tour.
However, we have refunded the amount.
You got everything we offered you, refreshments, water, fruit, snacks as well as the photos after the tour.
Unfortunately, we can't provide all this for free.
Thank you very much for your participation, next time appreciate more what you are offered and be responsible for your own weaknesses.