Raffle Llama is very simple. Every raffle you can see under the "raffles page" has a set limit of entries. After the entry is hit, it is going off and a random winner wins, the same as every other raffle in any scenario. The difference is always that there is no actual money involved.
Each win giftcards has a "Earn Ticket" button to complete FREE surveys to acquire raffle tickets to get into raffles.