"The next thing I knew he was back at the computer double checking that he had written the numbers down correctly - he wouldn't tell me anything until he was sure.
"Then he gave me the ticket to check and all I kept thinking was this can't be true - it was so surreal.
"We didn't get a wink of sleep that night."
The couple had won bonus Strike tickets before, but had never paid them much thought; "you certainly never think you'll win big with that one little line. Even now I still can't believe it."
With the money now safely in the winner's bank account, the couple have celebrated their win with their immediate family.
"The evening after we won we went out for a family dinner and splashed out on some champagne to celebrate.
"To be honest it hasn't really sunk in yet."
The winning ticket was purchased from Unichem Bishopdale Pharmacy on January 14.