Unable to play online due to a error on launch day.

i received 1 billion credits and xp on the day of launch. I immediately contacted microsoft support and was told i would be fine as it was not my fault. earlier this year i logged on and i now cant use any online features. i tried emailing turn 10, they responded saying somehow ON THE DAY OF LAUNCH i gave myself the credits. Turn 10 now are not responding to my emails. Plz help

Tampering with software and hardware results in a permanent ban: “Our monitoring systems are built to detect cheating and are actively targeting programs such as the “Forza Horizon 3 trainer.” Players who are caught using these programs while playing Forza Horizon 3 will be subject to a non-reversible permanent ban from online play in the game. We do this to help advance our goal of providing the best possible game experience for the vast majority of players who want to enjoy Forza Horizon 3 the way it was meant to be played.”