Contacts For Sea Service Letters

I worked for Transocean for only a couple hitches but left for a variety of reasons but I never got any discharges or sea service letters. The USCG is requesting them for my renewal. Who at Transocean do I have to contact to get one written up?

Also, if you have the sea service letter writing contacts of any other foreign flagged company maybe it would help others to post them here also.