Defective auxiliary cable boxes

Defective auxiliary cable boxes, I have 3 boxes one main with a DVR and two auxiliary boxes the main works fine , the other two not so much. One power supply started smoking and melted and the other box just quit. I talked to AI help, Useless! and they said they would send new ones....still waiting. I pay $15.00 a month for each and havent used them for 2.5 weeks. So basically send new ones or take these and give me credit.. $400.00 a month service and I have to go through this!!

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