In terms of honesty and transparency, Bartolini Air are in a different league of their own. About 2 weeks after I was done doing training with them I received an email where they asked me to get back to them with my IBAN as my account, unbeknownst to me, had a surplus of around 600 euro and they would return me the said amount.
I was not aware of that and I think most outfits would have kept it for themselves.