TANK WONT FILL Questions

Had The Car A Year. The Car Runs Good. No Misfires. But Gas Mileage Is Suffering. Fuel Level Never Worked. Pulled Tank 1/2 Way Down....

Every Time I Try Putting Fuel Into My Mini , It Stops As If The Tank Is Full But It Isn’t. I Can Only Put In A Little At A Time And It...

Attempts To Refill My Gas Tank Completely Flustered By The Nozzle Shutting Off Intermittently So That I Cannot Fill My Tank? Over 73000...