I've refrained from replying to this thread before now, but I have a few points to raise.
I am not a lawyer, but I did work a decade as a legal secretary. I think a lawyer's advice to the player would be to stay quiet on public forums at this point.
If CC has not brought legal action, but is merely threatening it, a lawyer will wait to see if they do...costs are most often awarded to a player defending a lawsuit than one initiating it. It is cheaper to launch a countersuit than a suit, so may be part of the reason CC has not launched any action, anticipating that the player will. Player denied knowledge of a lawsuit, not a THREAT of a lawsuit.
Most jurisdictions have a statute of limitations for filing actions...in Canada it is two years, and many cases are left to the last minute before papers are filed, hoping to reach a resolution prior to that, as well as assembling all the necessary information to be successful in your suit.
This is an area that requires expertise, and if you went to your family solicitor, he or she may need time to find a person licenced to practice law in the appropriate jurisdiction, and with expertise in this field.
Speculation on my part, but legal action is often threatened to intimidate people into paying or not demanding redress. An example from my personal life is following the death of my father, the agent for the funeral company threatened via a lawyer to recover costs for shipping my father's body home. This was covered by my dad's insurance, and they provided the lawyer a "contract", unsigned by me. I forwarded the insurance company's request for documentation to them, and they failed to provide it...not my fault, nor even documentation I had access to. The lawyer refused to persue it further, and the agent took me to small claims court. I defended, and was awarded court costs of $35, my cost to file a defence, and the matter was thrown out.
Whole matter smells however, but given CC's recent behaviour with regards to Heffernan and to another player in this thread (sorry, so long I couldn't find it), I don't regard it as a "done deal".
At the very least, the disputed monies should be paid into an escrow account.