End of Season Rewards

Hey League of Legends community! Just had a quick question about the end of season rewards! I've spent the majority of the season in Plat division but with the beginning of the school year and work have had no time to play. I've now been decayed to Gold division 1. My question is, will I get gold rewards or platinum rewards at the end of the season? Since the highest tier I've reached was Plat or do they give you the reward for the tier you finish the season in?