There are no other options if the bots which have promised to return but still not given back your amount you can easily contact them and can make a complain regarding such vote in steembot tracker itself.
But if bots which are non-refundable then there are no chances you can get your steem or steemdollar back in case you have to spend with some profitable bots and refundable bots only.
My advice is to not to go with such bots which are non-refundable if you are new to steemit you can just go to some profitable and refundable bots and can spend money without taking such risk.