I'm not sure the Active was ever marketed in the UK as we use models S, SE, Elegance and L&K. Perhaps this is an Irish car imported to the UK which may account from the different specification in tyres.Well that's a surprise (to me at least)!
The sales brochures from 2014 don't offer that tyre size either as standard or a factory-fit option on a 1.2TSI.
So maybe a dealer-fit option, special order, or a "fleet special" spec?
The 215/60 tyres tend to be more expensive, so you've had a bit of a result there financially.
Those three-digit codes are called "PR codes", and there are usually many more of them than can be printed on a small label.
If you have a service book, there may be a more comprehensive list of codes on a sticker inside the front cover, or you could get a full list from Skoda UK.