The Primera Liga champions are demanding around £35million for the Brazil international, although Chelsea are only prepared to pay £25m.
However, the 24-year-old's agent, Wagner Ribeiro, is still confident a deal can be done.
"I will try and do everything possible to get this resolved," he told the Daily Star.
"It is what Chelsea and Peter Kenyon want but there is no way they will pay what Madrid want."
Robinho is convinced that Real are trying to price him out of the market.
"The money Madrid are asking for is exaggerated in today's market," he said.