The trouble Oetker is they don't actually have any! Usual internet rubbish - they say they have stock when they don't. And we checked with Mahle and they say they are discontinued, so these stockist think they can simply get some to fulfil any order but then they found out they can't. So don't believe all you see on the internet.
I am close to getting the part number of the K&N filter that will fit the 1.6 once I have seen a 1.6 filter housing and measured it accurately. So keep an eye on my website (Murena alternative parts) for more info, soon.
Roy
I ordered one of those eBay filters and the vendor came back a few days later and said there were no stocks and gave me a refund. If you need a filter housing for a 1.6, I've got a spare one you can borrow in order to measure/trial fit, just let me know before Beaulieu.