Unfortunately, this forum is a self-help forum for the classic ADSL service. I don't have any stores. If you are having trouble with your 'at&t Yahoo! HSI' service, I can try to help you with that; but ...
If you need assistance with your AT&T Wireless service, the best forum appears to be here:
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Cellphones, Providers, and PlansOTOH, if you are just ranting about AT&T Wireless service, in general, try here:
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Rants, Raves, and Praise