Coinbase Global (NASDAQ:COIN) restored its operations after throttling traffic "for a few minutes" following its Super Bowl commercial, which sparked a surge of activity, the company said. "Oh wow, that was more than we expected," the company tweeted at 9:55 PM ET. For those who had problems getting on the website Sunday night to sign up for its $15 bitcoin (BTC-USD) giveaway. Downdetector had reported problems with Coinbase (COIN) at ~7:20 PM ET, soon after the company's Super Bowl ad with a QR code for the $15 bitcoin giveaway appeared. Coinbase (COIN) shares are little changed in premarket trading on Monday. Bitcoin (BTC-USD) rises 0.3% to $42.7K. For a related read: Wells Fargo likens crypto frenzy phase to internet in dotcom bubble