Riot didnt give me any LP for a win....

earlier today I had problems with a game, and furthermore prevented me from playing additional games for awhile due to the servers having being worked on apparently. so couple hours pass I can play again I do I win and then notice I haven't been given points from game before. was at 34lp got 18 at 52lp. There was a game inbetween that and I must say it was an amazing game we made an epic comeback I was ekko top and I did amazing game strected out to 50mins so many inhibs down baron and dragons, AND ITS GONE. its not in my match history I don't get LP for this amazing game ( best ive had in months) and I have a terrible feeling nothing will be done about it. and fyi the game was affected at all by the server issues what so ever we clearly won the victory thingy popped up and our team celebrated in chat before post game screen which never appeared. RIOT U OWE ME SOME LP FOR THIS AMAZING GAME. PLEASE HELP ME. HELP ME RIOT YOUR MY ONLY HELP.