AT & T Yahoo Internet Service

My complaint is with AT & T Yahoo internet and the way they advertise. I do not think by paying an internet fee every month like I do for their service, that THAT fact should allow them to put commercials before videos that I want to watch! It is so aggravating to sit and wait for a commercial to run when all I went to that site for was to watch a short video clip. I get so mad I don't even know what the commercial was about! I think I will change my internet service because of it. Totally uncalled for!