20% Bonus MC http://mwomercs.com/forums/topic/184326-boxing-weekend-sale-20-bonus-mc/ 35% off hero and champion mechs http://mwomercs.com/forums/topic/184327-boxing-weekend-sale-35-off-heroes-and-champions/ This runs till the 30th.
Just emailed Piranha games, if I had known that they were having a sale today I would've waited a day before buying that MC yesterday. Hopefully they will work with me on it.