Having now established that the letter is a fraud, James Laverty, from Brigade, has warned holidaymakers not to be fooled, and not to part with personal information while abroad.
"I received the letter last Saturday morning, but we were last in Spain in November last year and while there I filled out some competition stubs. I have a habit of filling them out, but never put them in the official boxes. I just fill them out to pass the time," he said.
Last year the couple bought furnishings from a company in Europe, and their names were entered in a draw - which might also be how the scamsters got his details.
"I don't know how it happened that these people got my details. I have had these scam things before, but I have just thrown them out, but the thing that drew my attention with this one was that they did not ask me for any money and the first three of the numbers listed are numbers we would use regularly in the Lotto and I thought it was odd," he said.
"It is more than likely that I filled those numbers out on a competition stub while I was in Spain and the address they sent the letter to was Clements Court, where I used to live. In the letter they claim the plan to release the money to me failed because there was a complication with the address. I think they were just trying to get more information on me to steal my identity or get money out of me," Mr Laverty said.
He warned holidaymakers not to be fooled into filling out dud competition forms.
"They were trying to put me under pressure to respond to the letter and I would advise anyone who received a letter like this to just throw it away. I have had a couple of these things over the years and it is my belief that you never get something for nothing."
Recent investigations into a similar scam in Spain showed remarkable similarities to the one targeted at Mr Laverty. It involved the 'recipient' being informed that they had won a substantial sum of money and the contact insisted on secrecy before disclosing that a 'ratification fee' of £1,800 had to be paid before the six-figure cash prize could be claimed.
The official Spanish Lottery is sufficiently concerned that a warning has been posted on the website, together with advice on what to look out for so that unwitting people are not duped.
Lottery officials said: "In order to carry out the fraud, the procedure that is generally followed consists of informing the potential victim that they have been the lucky winner of a substantial prize - even if they have not participated in any draw, although they cannot collect this prize until they have paid an amount going towards the taxes, bank costs, delivery costs or insurance processing, etc.
"Usually, the fraudster warns their potential victim that the deadline to pay these charges is very soon and that their right to collect the prize is about to expire," the officials said.