I queried it with Curious Cat as I had done another one by On Device Research sent to me by text and it had not gone into my Curious Cat app Account. I got a reply to say the On Device Research Surveys were being paid separately at the moment about 1-2 weeks after the project is finished straight into your PayPal Account.
Trouble is if the survey link above is old then it may not pay out if On Device Research have finished collecting data for it and paid people already.
Otherwise you will suddenly receive a £2 PayPal payment in a week or two from On Device Research.
Same here, through the app when you get a "cat" survey it's always a 40p easy task, but from the link it means you have been specially selected and can earn £2 from a private link they share. Which incidentally pays out for anyone who uses it. That's why me and my mate share them and I pass them on to everyone here.