Unions are pushing for more money as the cost of living rises rapidly, but rail firms have said they will not pay more without concessions.
The BBC understands that train operators and the government have not made any attempt whatsoever to arrange any meetings or put forward a decent offer that can help us reach a negotiated solution, but wants the union to put the latest pay offer to its members before taking further action.
The RDG said more strikes were completely unnecessary and that all the RMT had achieved was losing its members more money than they would have received from pay offers.
Everything is ever enough, Every one of our offers has been rejected - not even by our staff who have not cast a single vote. No more ransom demands are needed, the industry must change to survive, the source said.
The Department for Transport said the strikes were targeting two iconic international sporting events and would disrupt families at the start of the school holidays in England and Wales.
The government has aided train operators in putting forward fair and reasonable pay offers that would see substantial increases for rail workers, the spokeswoman said. Union leaders should do their job and provide their members with a chance to vote on these pay offers. Bank of England Governor Andrew Bailey said wage increases can't continue if inflation is to come down, reiterating Bank calls for restraint from workers.