It seems pretty cut and dry; DDoS-Guard would need a physical presence there to operate, they didn't, so the IPs were revoked. The phone call was simply a tip to investigate.
> DDoS-Guard CEO Evgeniy Marchenko maintains the company has done nothing wrong, and that DDoS-Guard does indeed have a presence in Belize.
So they acted without any investigation because "uh oh, here comes the mob".
> DDoS-Guard CEO Evgeniy Marchenko maintains the company has done nothing wrong, and that DDoS-Guard does indeed have a presence in Belize.
Which clearly does not support anything else in your comment, or rebut anything in the comment you're replying to.
Where did you find that LACNIC didn't investigate this?