Does charging collections reduce number of quests?

I am very lucky in that I have high level friends who gift me everything on my wish list which means I can complete collections quite quickly. I have a feeling though that I may be missing quests appearing. Example all rooms are open but I cannot explore last four rooms without buying the items to enable me to explore them and I see a few quests mentioned that haven't shown yet for example printing roller. I have charged all collections right up to at least number 80 so I wonder if I will need to collect the items again to make sure I don't miss out on quests?

Don't worry, the quests will appear And if you already have the item that was requested, the quest will complete right away, and a popup window will give you the award/s. Then the next quest appears immediately. It sometimes happens one after another, a whole string of quests that just auto-complete. Nothing to worry about, stocking up on collection items before they're needed.

The only drawback is, a string of quests are completed one after another and make you level up so fast, before you've even had a chance to use up all your energy. That's the only bummer. But otherwise, it's cool.

Oh sorry, I missed the other half of your question. It's better not to charge the collections until you need to -- because some quests require the items individually and not as a collection. So you'll have to find those items or ask for them again. But nope, it won't reduce the number of quests.