Hidden Quest, Immediate End

It's a game where you match three mahjong tiles of the same pattern. I've been playing since yesterday. The hidden quests shown to me were only two: reaching level 1 and reaching level 5. I hoped more quests would be added after reaching level 5, but none appeared. It's disappointing 😢 I was having trouble because the hidden quest for level 5 wasn't clearing even after reaching it. I contacted support, and despite it being a holiday, they responded quickly and I received the quest rewards. Thank you, support team m(_ _)m