Accidentally left room, how to contact potential client again?

[309b2df7]

Hi, I had someone reach out about a project and we'd exchanged messages trying to work out a contract. In a very silly blunder I 'left the room' which... I didn't know it would make the chat disappear completely. Is there any way to contact the client again/reenter the room? When I click into past notifications that say "so and so has sent you a message," I'm taken to a page that says "You don't have right to access the room." 

[JoanneP]

Hi Maggie,

I've shared your concern with the team. Please allow time for the team to check your account. One of our agents will be in touch to assist you further.