Telecom company? This isnt something small that someone would able to achieve. Would you mind on whats the name of the company of yours yet it had been on the market for 6 years?

Its just impossible that for something that big will just be seeking out for more funding yet with that amount of time its safe to presume that you had profited that much and $500k wont really
be that big for a multi-million business.

Lastly, dont expect for someone to contact you in telegram yet you didnt even bother to show up some convincing proofs. No proofs = ignored.