got a picture? you say sent in for repairs.. I would be questioning the guys working on it. Is there a screw close to the hole/crack/dent? Depending on how bad it is I have used jb weld gas tank repair on motorcycle gas tanks before with great results.
2013 Kawasaki Ninja ZX-10R
~Woolich ECU Flash/Log Box/AutoTune~Driven Block Off Plates~Woodcraft Frame sliders~Cox Radiator Guard~OEM Seat Cowl~Tinted Hotbodies Venom Windscreen~Lightech Chain Adjusters/Axle Sliders/Spools~Sato Rearsets/Race Hooks/Bar Ends/Reservoir Covers~Pazzo Shorty Levers~Engine Ice~Motodynamics Rear Turn Signals~Ohlins TTX MKII Rear Shock~R&G Case Savers~M4 Street Slayer Exhaust~Ohlins Race SCU~-1 +2 520 Driven Sprockets~520 DID Gold Chain~