"We will now be proceeding and looking for a result.
"Our legal people have presented it to us and we signed it all off on Friday. We know exactly where we're going.
"They'd been ignoring us. We'd given them a fair chance and you can do no more than give people a fair chance.
"From a complete lack of any discussion it's left us no alternative other than to do what we've done.
"We're not legalistic people but the fact is we have a business to run and there are 36 people here that depend on my judgement to make sure they are employed every week.
"I'd be very surprised if we didn't have these cars and engines (next year)."
Rogers and the GRM team, including Kiwi driver Scott McLaughlin, will be compete at the Sandown 500 this weekend.
McLaughlin is fifth in the championship currently.