Yahoo Email/disappearane of

a couple of weeks ago my email page thru yahoo disappeared and in its place came a string of messages from yahoo sport all about american football or base ball ! mostly up to 12 months old
They informed me that I had been enrolled into Yahoo Sport . If I did not want it I should press UNSUBSCRIBE
There was no unsubscribe box to press
Another screen appeared,,,much the same but still no box to press
The screen changed again It thanked me for changing my mind and not unsubscribing !?X scream

Thats not all
All my normal E mails have disappeared and no new ones have got thr0ugh for two weeks now.

How does one get Yahoo to stop messing with our accounts and put thing back to normal or do we have to change to FIRE FOX or some other provider