How often are messages reset in Chai app?

here is chai app so how often do you see your messages that uh reset in the app so with their recent update you can see that you can send 17 messages and as i know 70 messages is the limit for three hours so every three hours this limit is being reset and you get new 70 messages if you didn't use your 70 messages you don't get 140 messages so that's that's that you you just if you didn't use your 70 messages that not being saved so i just disappear and then after three hours you get another 70. so yeah if you use like 20 messages you have 50 messages left after 3 hours you will get 70 messages you won't get 120 so that's what it is that's a limitation here that's how it works