The Colombian telecoms regulator, the Ministerio de Comunicaciones (Mincomunicaciones), will push ahead with plans to auction WiMAX licences in the 3.5GHz spectrum band at the end of this month, despite complaints of irregularities in the bidding process, reports BNamericas. Mincomunicaciones had come under fire from several participants accusing it of accepting a proposal from Comcel after the 4pm deadline on 14 August. The ministry will announce the winners of the licences by 30 September.