Thanks for the reply and no it was not in writing and it was really a genuine mistake because I don't consider the money mine even though technically I guess it's classed that way as it's in my account.
My savings/winnings have never been no where near to £6000 on JSA , but my statements read like money in £500 paddy power, £250 cassava enterprise, £100 PayPal, £50 PayPal, £20 PayPal etc. all from winnings, but this is ok yes? thanks