Woke up with 400 extra gold?

So I had hearthbuddy run over night. I left it with 20g and 1 quest. I wake up with 400g and 2 quests? So I didnt complete the quests or anything. But how did I get 400g? Isnt cap 100g a day?

 

Must have been my 1000th win...You get any more after 1000?

 

List of 1 time quests:
List of Achievements and Daily Quests in Hearthstone - General Discussion - Hearthstone General - HearthPwn Forums - HearthPwn

First Blood Complete a game in Play mode. 1 Card Pack
Level Up Get any class to level 10. 1 Card Pack
Crafting Time Disenchant a card. 95 Arcane Dust
Enter The Arena Enter The Arena 1 Arena Credit (Free Round)
Arrrrrr!!! [G] Acquire every Pirate. Captain's Parrot
Golden Arrrrrr!!! [G] Acquire every Golden Pirate. Captain's Parrot (Golden)
Mrglglglgl! [G] Acquire every Murloc. Old Murk-Eye
Golden Mrglglglgl! [G] Acquire every Golden Murloc. Old Murk-Eye (Golden)
Chicken Dinner Win 100 games in any mode. 300 Gold
Big Winner Win 1000 games in any mode. 300 Gold
Ready to Go! Unlock every Hero. 100 Gold
Beta Hero! Thank you for helping to test our Store! Gelbin Mekkatorque (Golden)
Crushed Them All! Defeat every Expert AI Hero. 100 Gold
Got the Basics! Collect every card in the Basic Set. 100 Gold
One of Everything! Collect every card in the Expert Set. 100 Gold
Golden Malfurion Stormrage Win 500 Ranked games with Malfurion Stormrage. Golden Hero Portrait
Golden Rexxar Win 500 Ranked games with Rexxar. Golden Hero Portrait
Golden Jaina Proudmoore Win 500 Ranked games with Jaina Proudmoore. Golden Hero Portrait
Golden Uther Lightbringer Win 500 Ranked games with Uther Lightbringer. Golden Hero Portrait
Golden Anduin Wrynn Win 500 Ranked games with Anduin Wrynn. Golden Hero Portrait
Golden Valeera Sanguinar Win 500 Ranked games with Valeera Sanguinar. Golden Hero Portrait
Golden Thrall Win 500 Ranked games with Thrall. Golden Hero Portrait
Golden Gul'dan Win 500 Ranked games with Gul'dan. Golden Hero Portrait
Golden Garrosh Hellscream Win 500 Ranked games with Garrosh Hellscream. Golden Hero Portrait
Greater Reaper of Packs Your Diablo III Reaper of Souls Collector's Edition comes with 2 packs. 2 Card Packs
Mount Up! A special reward for your third win! Log in to World of Warcraft to claim it! Hearthsteed
You are Legend Welcome to the Hearthstone Elite! Show it off with your Legendary Card Back! Legends Card Back
Fireside Friends Hearthstone is better with friends! Enjoy the company, and your new card back! Launch Card Back
Reaper of Packs Your Diablo III Reaper of Souls comes with 1 pack. 1 Card Pack