If a chase offer that has % cash back does not specify a maximum $$ amount that you can get back, does that really mean it's unlimited? Not that I'm planning to do spend a super large amount but I do want to make sure I'll get the full % cash back on the purchase I'm planning to make, otherwise I'd split it up among 2 cards.

For example, when I look at a 10% back offer from Lyft it tells me there's a maximum of $4 and one from Lululemon says $16 so I know if I want to use those offer to make sure my purchase amount stays within that limit.

However, my 15% offer from Zappos does not state any max $$ amount. I want to buy for ~$200 and would be expecting to get ~$30 back but if there's a max cashback (that I'm unaware of because I can't find it anywhere), then I would split the order on 2 cards because this is for 2 items so I can do it, but obviously it's easier to just do 1 order using 1 card.