"I purchased an android tablet from CNA Digital SIX MONTHS AGO. The unit they shipped me was defective. After getting RMA authorization from them I paid to ship the defective unit back to them. They sent me a second unit, which was also defective. Two months have passed since I informed them that the second unit was defective and they have yet to respond. They also promised to reimburse the shipping, which they have not. I would strongly recommend NOT doing business with this company!"