if your getting lottery tickets from free rolls is disabled, and you have just 2 WoF spins per day on average, there are some weeks when you have zero lottery tickets.
This is possible, but it's very unlikely.
Each time you play WOF, you have around 33.4% chance to win lottery tickets.
So, the chance to not win any lottery ticket each time you spin the wheel is around 66.6%.
Assuming you play WOF, 2 times a day and 14 times in a week,
the chance to not win any lottery ticket in a week is only around 0.338%.
0.666
14 = 0.00338
Yes, it
is unlikely if we take only one week, but take 30 weeks, and it is not that unlikely anymore, right? I know that each week is independent from all the previous weeks, the wheel has no memory of other spins and stuff, but here's the thing: although the current US Powerball has 292,201,338 possible combinations, and thus it is very unlikely for the holder of just one ticket to win the Jackpot, all the holders together somehow manage to win it once in a while. In fact, since Powerball launched 30 years ago, 393 tickets have won Jackpots. In short, what's unlikely from the first try is not that unlikely with many tries.

I think it is highly unlikely that with 14 spins weekly to not hit a single lottery ticket.I have always like 7-9 spins daily and whenever I use them it is a sure thing to get at least one roll for a lottery ticket.I guess there is a better percentage to get the lottery ticket as it is the most common prize one can receive during the free rolls.
The only game lottery I like is 6 from 49 where if you buy 13.800.000 tickets it is a sure thing you will get the maximum prize of 6 numbers,now don't get excited because states have rules in place to forbid it,either the prize is not worthy to buy all these tickets or either you can't buy that huge amount.