Having fallen for the initial trick, Daniel Peart, 27, did not believe wife Charlotte, 28, when she called him at work last week to reveal they were millionaires.
Mr Peart, a self-employed carpenter from Cambridgeshire, was so sceptical he passed the phone to his brother.
“I didn‘t believe her at all because we like to wind each other up,” said Mr Peart.
It was only when she sent him a screenshot of the winning message that he realised it was true – and he was “stunned”.
Image: Daniel Peart and his wife Charlotte celebrate their £1m EuroMillions HotPicks win Image: The couple say they will buy a larger house near Peterborough, where they currently live
Admin worker Mrs Peart said: “He didn‘t believe me. Actually, he said ‘I can‘t talk to you right now love‘ and ended up putting his brother on the phone. It was definitely crazy and not a normal day.”
The couple, who met at secondary school and have been married for five years, have three children and own a three-bedroom home in Whittlesey near Peterborough.
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They are planning to use their windfall to buy a larger house in the area.
“With a family of five it gets a little cramped, a little tight. All the kids have earned their own bedrooms, they‘re all excited about that and we‘re looking forward to the next adventure in our lives,” said Mr Peart.
Their children have already been treated to hoverboards and a Nintendo Switch.
Mrs Peart used the last £1.50 in their online lottery account to enter the 28 August draw.
Mr Peart is looking to move into property development, and said he hopes the win will mean security for the family.
“The biggest thing for us is we get to spend more time as a family and we don‘t have to worry so much as what we‘re used to now,” he said.