Blue Dolphin Group LLC $ taken fr debit card w/o approval, resulting in overdraft charges Stamford Connecticut

Participated in on-line surveys for Harris Poll and ordered free magazines. Then I automatically was connected to a Blue Dolphin page that offered magazines for $2.00 per magazine.

Paid $2 each for 3 one year subscription magazines to be mailed to an address out of my state in Maine as a gift. My debit card was credited $6.00. 

On 12/7/15 my checking account was charged the following: $19.99 for Oprah, $12.00 for Good Housekeeping, and $67.00 for Us magazine.  There was no money in my account ans was charged three $35 overdraft fees. Did not receive notification of any kind that I would be charged.

Called an 800 number provided by my credit union. Each time I was told their system was down. Requested call backs...no call ever received Back. I canceled my Visa check card due to fraud so need a check mailed to me.

Need help!