I wasn't able to summarise this properly — the article text provided is just the Daily Mail homepage/navigation links (headlines for unrelated stories), not the actual body of the fraudster/pensioners article. No real content about the £11.5m scam, the accomplice in Portugal, or the sentencing is present in what was passed to me.

Would you like me to fetch the article directly from the URL to get the actual text, then summarise it?