yes no maybe?

Not fully sure of what you ment, but you can get coupons for day you spent ingots + 6 days after. If you didn't buy froggy on 1st day, you should still get coupons on today. You got only days of 1st week to spend ingots in Froggy.

sry what i mean is can i still use this event today and claim till its over

I did say, that you got only 1st week to spend ingots. 2nd week is only for claiming coupons you didn't get on 1st week, because you didn't get them on day 1. It seems you can't spend ingots anymore on today, if that's what you ment. Sorry.

For Naruto Froggy Event, you need to participate during the event cycle in order to be able to claim the daily rewards.

As long as you participated during the event cycle, you can claim daily rewards from the next 6 days (even if it goes to the next week). However, once the event cycle is over, you are unable to participate in Naruto Froggy to obtain the rebate rewards.

Hopefully that helps.