I don't think that link from Oct 20 works anymore when you actually attempt to Apply, but there is at least one still floating around. The recent 50k links my wife and I have found and used in the last month have actually resulted in 50k points and not 25k (unlike that link from months back where people changed the URL string from '25k' to '50k', which was definitely not reliable even though app stated you were getting 50k points).