Las Vegas USA Casino | 400% Welcome Bonus up to $10,000Casino / January 4, 2021 August 5, 2021 / Bonus Codes Las Vegas USA Casino | 400% Welcome Bonus up to $10,000 As part of Las Vegas USA Casino’s 20th year celebration, their are offering an exclusive bonus, their biggest one yet. 400% Bonus up to $10,000.Use Code: GEN25