My name is Kevin "Biomech" Putzier, General Manager of the GameCredits (formerly Gamers-coin) project. We have prior claim to the GMC ticker. Given the number of altcoins, I am proceeding from the assumption that you simply didn't know. Please choose a new ticker and inform your exchanges of the same. We are already well established with the GMC ticker, and would like to avoid confusion and conflict regarding this matter.
Thank you!
EDIT, for more information regarding our coin, please see this thread, and reference the original. We've been around for a while https://bitcointalksearch.org/topic/m.10966191
If it is I am sure they will take necessary action to change it up to something that you wont be bothered by.
That is our hope as well. Given the proliferation of alts, it's quite likely simply an oversight.
It was an oversight on our part, and we will change our ticker to GRM. Thanks for letting us know!
Any word on the trex listing