Radisson goldpoints plus - Given Standard Room when Booked a Business Friendly Room...only just realised.

What do I do if the room I booked is downgraded and I only realise once I've left the property?

I stayed at the Berlin Park Inn, AlexanderPlatz in January and intentionally booked a "Business Friendly" room. I requested early check-in by sending an email to the propery before my arrival and included my GPP number (Gold Status).

On arriving and seeing the room I thought it looked reasonably presentable but didn't seem particularly business friendly, certainly lacking in facilities (and some things like the TV didn't work), not a particularly high floor and the room wasn't exactly large. In too much of a hurry to enquire at the time, I headed off into the city.
Today I've double checked the ParkInn website for this property and it states business friendly rooms have "Complete window front in two directions". I definately only had one window so I'm now pretty sure the room was standard room.

I feel like sending an email to the property but I'm not really sure if it will actually result in anything. Should I be expecting a refund of the difference in cost between the standard room and the room I booked and paid for?
I did book through a third party website (WWTE) so perhaps I should contact them?

you have pm

Thanks SwissCircle,
I just gave them a call but they seemed to think the room I had was a business room.
The impression I got from my call is that there is more than one type of business room -
The one they describe on their website (called Business Friendly Room but what the receptionist calls a business panorama room) and a smaller one that I got (which isn't mentioned on the website and the receptionist calls a business room)...

It doesn't help that the third party site I booked through only lists "Business Class" rooms and Suites. I'm not sure if that explains the difference. It does seem a bit misleading if that's true though; I might drop the third party website line.

Oh well, one sometimes wonders who comes up with all these room types in just one place.