The 25-year-old's studies were paid for by an Army bursary but that was withdrawn because he had to leave the Forces after he became ill with a heart condition.
PA member Jake
Jake said: "I'd recommend everyone at least gives it a try. Although it may be daunting in the beginning, it's actually really simple and you may even enjoy it, especially when you see it actually works.
"No matter what your starting bank size there's always offers for you to do and your bank will quickly grow and then you can tackle more offers."
Clarke, who studies at Loughborough, said: "A lot of people are sceptical or think it's too good to be true - I can guarantee it's not! At the start it can be time consuming.
"You want to make sure you've done everything right so you can lock in the profit. However, the more familiar you get with the process, the quicker you get and therefore the greater potential you have to earn money.
"What took 30 minutes at the start can now be done in less than two minutes. Another difficult concept can be parting with the money to place and lay the first bet - it can be daunting!
"But once you see you've made your first profit risk-free, you realise you've nothing to worry about. I look at is as an investment that pays back massively in the long run."
How much can be made from matched betting?
The income varies depending on the member's circumstances. The main factor is how much time can be dedicated.
The sign-up offers alone can be worth more than £1,000 and then the sustainable profit comes from the reload offers - promotions that bookmakers use to retain customers.
To get a general idea, Profit Accumulator has two threads on its forum - how to make £1,000 a month and how to make £300 a month but earnings can be much higher than that.
Try it for free
Profit Accumulator offers a free trial to let new members see how matched betting works. It includes step-by-step instructions on how to complete two bookmaker sign-ups and should return about £45.
Platinum membership includes access to all offers, as well as access to the betting forum, where members share advice and support each other through their matched betting journey.