In March 2013, Czech telecommunications regulator CTU suspended the country’s spectrum auction, surprisingly, because the bids were escalating too far beyond the reserve price. CTU set a minimum price of CZK7.4 billion ($377m) for three frequency bands — 800MHz, 1800MHz and 2.6GHz — but the overall bidding had climbed to CZK20 billion before the regulator decided to call the auction off. Rather than revel in a government windfall, the regulator feared that excessive spectrum costs would pass through to customer bills and delay investment in 4G networks.