@NewUser471254 I can't work out how to post a screenshot on my phone lol but this is the wording from the full terms and conditions.
"To be eligible for the refund of losses you must:
a) have made a loss on your amalgamated trading activity during the Promotional Period;
b) opt-in via trade.footballindex.co.uk/janmoneybackoffer; and
c) have qualified for a minimum refund of £10 (i.e. made a loss of £10)"
Unless I've got the wrong end of the stick, that says to me that you need to have made a net loss of at least £10.