Draft reports from the Auditor-General's investigation referred to backdated documents and inconsistent treatment of bidders,[13] but independent reports by Pricewaterhouse Coopers and Avanti Consulting in 2005, as well as the Victorian Auditor-General found that the integrity of the tender process had not been compromised.

[14] In 2007, serious probity concerns were raised when it was revealed that TTA boss Vivian Miners, who owned shares in the winning bidder, had also become the highest paid bureaucrat, earning A$550,000 a year.

[19] In February 2008, Public Transport Minister Kosky announced that the full roll-out of the system would not begin until the end of the year.

According to Kamco's report, Regional Bus Pilot 1 showed that: "Essential onbus activities such as scan on and scan off, top up Myki, purchase of short-term tickets using cash or Myki money, driver log on / off, route and shift selection and GPS connectivity and accuracy performed well.

Back office processes and operational procedures such as end-to-end data transaction flows, generation of reports, training, communications, installation and commissioning were generally good.

The operator (McHarry's Buslines) was pleased with the NTS training, performance and ease of use of the Myki solution."

The train tests involved Kamco staff at East Camberwell, Canterbury, Chatham and Mont Albert stations.

[33] From 29 December 2009, Myki became valid for travel on all metropolitan train services (but not trams and buses), in a politically driven move to meet a promise by Transport Minister Lynne Kosky and Premier John Brumby to have the system working by the end of 2009.

[36] After the initial launch, tickets could only be purchased online, or from six regional cities where Myki was already in use, further limiting the number of travellers able to use the system.

[41] Having won the state election in November 2010, the new Liberal/National coalition government announced on 28 December 2010 that it would halt any further rollout of Myki, including V/Line usage, card top-ups by bus drivers, and the introduction of sales at retail shops, until an independent audit had been completed on the state of the current system.

However it was announced that short-term tickets would not be introduced in metropolitan Melbourne, and would be abolished on regional city bus systems, where they have been in use since Myki's introduction.

[43] A survey conducted by the RACV found that users like Myki's ease of purchasing, but the time taken to touch on and off was a major disadvantage.

The limited remaining range of Metcards could only be purchased from staff at premium stations, from bus drivers, and from PTV Hub.

In the meantime, the sale of Metcards at premium (staffed) Metro railway stations was progressively phased out, and ceased entirely during October.

Paper tickets remain for travel outside the Myki zone, such as to Warrnambool, Bairnsdale, Swan Hill, Shepparton or Albury.