I can't get rid of this constant advertisement to the right of the email screen & the arrow only works a short

There is an arrow to the left of the ad screen %26amp; when I click it, the ad goes away, BUT it always comes back. I want it to away forever!I can't get rid of this constant advertisement to the right of the email screen %26amp; the arrow only works a short
The ads pay for the email. To have no ads you must pay for Yahoo Mail Plus.





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