"The Government does offer a one-off resurgence payment, however if you look at this, it's equivalent to about 60 per cent of one week's overheads. As the Government extends the lockdown employers need the same recognition as employees."
Barnett said the aim was to send a message to Government that these are tough times for business.
"We have been asked to pause business so that Government can implement their elimination strategy for the good of New Zealand so a continuation of the resurgence package is not a big ask."
By 3.30pm on Monday the petition had 7000 signatures. By 5.30pm there were 11,000 and by 9am Tuesday the count had risen to 15,000, said Barnett.
He was "amazed" at the speed of the response to the petition, which he believed reflected the vulnerability of employers.
"They're under a huge amount of pressure. All they're seeing is money going out and none coming in. It staggers me the Government didn't do something about this [business vulnerability] last year and now this year. The costs are very significant."
Most signatories so far seemed to be small to medium businesses, he said.
Barnett said businesses needed to keep staff for when New Zealand emerged from Covid restrictions but they were doing this out of their own pockets when no cash was coming in.
Businesses also had the weekly costs to meet of rents, rates, hire purchase and power bills - costs that were coming out of their pockets.
"There are dollars going out and none coming in. Businesses will very quickly become cash poor."
The petition, which closes on Friday, had been launched through the northern chamber of commerce hub, comprising chambers in the upper North Island, but by mid-Monday afternoon had quickly gathered support through social media channels, Barnett said.
The petition can be accessed through the Auckland Business Chamber website.
The Government resurgence support payment is a one-off payment to help support viable and ongoing businesses or organisations due to a Covid-19 alert level increase to level 2 or higher.
The wage subsidy is a payment to support employers so they can continue to pay employees and protect jobs for businesses affected by the move to alert level 4 on August 17.
To qualify for the subsidy, businesses must have had, or predict, at least a 40 per cent decline in revenue attributed to the move to level 4 over a period of 14 consecutive days between August 17 and 31 inclusive.