There is no vet reward past 1,000 days. You should have gotten all the other rewards when you became lifetime. Have you checked to see if you can claim the vet ships and other goodies listed in the rewards past 700?
There is no accolade for getting 1100 days, 1200 days, 1300 days, etc. There is absolutely no reason for Cryptic to add Veteran Rewards past 1000 days since hardly anyone would qualify for them the hard way due to people going F2P or the lifetime subscription giving all veteran rewards. I suggest you go to DS9 to see if you can claim the Mugato or Shipyard to see if you can claim the Heavy Destroyer.
Check your information before you make baseless comments, ashkirk is indeed correct.
1k is the current maximum for Veteran Rewards, which awards you the Faction's Heavy Destroyer. There's also no point asking here - now that this is your second thread on the subject. Try sending a bug report or a ticket regarding billing.