I don't bother with the promotion anymore as Eye of Horus is one of the worst slot ever produced, had many £1 spins all dead also.
They've done the homework when it came to choosing a slot for free spins picking one that won't cost them too much, if anything.
That being said all casinos are doing the same if it's not Blueprint it's Red Tiger dross for FS.
Hill's used to be good for games/vegas/casino bonuses but they've removed nearly all regular offers and replaced it with those IGT tournaments which are near impossible to win anything and the free spins are on a nerfed Cleopatra.
Also they've reduced RTP's down as low as 92%, I will likely only be using there sports betting from now on.