Regardless of how many you claim in a single week, you can only receive one a week in-game. If you didn't claim them individually each week, then, unfortunately, you missed out on the extras you didn't claim for each week.

This information has been available since before the event. The help articles are part of customer support. It's unfortunate that you didn't find the available help article previously. You can view it here: https://help.bungie.net/hc/en-us/articles/8048011793812-Twitch-Drops . [quote]Collecting Loot Offers Upon successful connection of a player's Bungie and Twitch account, all that's left is to start viewing a participating Destiny 2 stream on Twitch. Once you've watched the stream for X** amount of time, you'll be prompted to accept your award on Twitch, and, from there, it will automatically be deposited in Destiny 2 to your Collections under Flair>Emblems>General. Players may have to log into their Bungie.net account and go to the Partner Rewards section of their Code Redemption area and claim the emblem before it will appear in Destiny 2. [u][b]If the item doesn't appear, pressing the 'Refresh' button may help.[/b][/u][/quote]