Bandit, you also questioned the 2 skull wild lines of 9s you had during gates paying £11.00. a line of 6 9s pays 0.40 there was a reel with 2 9s on so that makes 4x 6_9 so 4x 40% of £5.00 which is £8.00 plus there 6 lines of 3_Qs for 50p each so that paid correctly
Prior to that spin you have a 5 kinds making one line for 1.00 paying £5