Sprint Framily Plan Internet

I had a Sprint phone and was charged $90 a month for unlimited everything. I was happy. I then added two lines and switched to the Framily plan. I was told there were no early termination fees. I paid over $1000 the first three months of having the three phones. That is a far cry from what was advertised. The two lines that were added couldn't be taken off the plan and the two extra phones couldn't be returned. I am now stuck with an $1800 bill. I am not happy and feel this company misrepresented the plan. My bill went from $90 a month, was suppose to drop down with added lines which would not have been that much more. My monthly bill turned into $500 the first month and then $290 per month after that. Not what was advertised.