The head of New Zealand's newest mobile phone company is promising teething problems will soon be resolved.
2 degrees has had security problems with parts of its website, while higher-than-expected demand has also meant a delay in delivery of SIM cards.
The company says three times the number of people than expected have registered for free SIM cards.
The network operator launched a pre-paid mobile service last week.
However, many customers who registered for a free card with $2 credit have not yet made calls.
They were told they would receive their SIM cards by 22 August, 20 days after the launch.
2 degrees says 28,500 people registered for the free card and the delay is due to the time it takes to mail the cards.
Chief executive Eric Hertz says the problems are being worked on.
Campaign against termination charges
2 degrees has also joined forces with farmers, consumer groups, unions and iwi to call on the Government to force Telecom and Vodafone to do away with mobile termination charges.
A mobile termination rate is the fee charged when a person calls or texts someone on a different network.
In a draft report released in July, the Commerce Commission recommended those prices should be regulated.
The spokesperson for the "Drop the Rate, Mate" campaign, Matthew Hooton, says established companies Vodafone and Telecom are running a lucrative duopoly.