EXCEPTIONAL BAD SERVICE

BEFORE I AM TO REDEEM THE VOUCHER I TRY TO LOG IN AND I CANT. WHEN I QUERY THIS GROUPON TAKES MORE THAN A WEEK TO RESPOND AND COME BACK WITH A SORRY EXCUSE STATING ***** ON MY ACCOUNT AND ALL TRANSACTIONS ARE REVERSED. IF THERE WAS ***** WHY WAS I NOT INFORMED OF THIS. SOMEONE DID LOG INTO A TABLET AND USE THE GROUPON ACC WITH THEIR BANK DETAILS THINKING IT WAS THEIRS AS I HAD NOT LOGGED OUT. HOW ON EARTH IS IT ***** IF USING BANK DETAILS IN THEIR OWN NAME. WHY WAS I NOT INFORMED. IHAD A BOOKING WITH THE MERCHANT TO REDEEM THE VOUCHER AND WAS NOT INFORMED THAT IT WAS NOT VALID. THIS IS DISGUSTING. WHEN I QUERIED ON THE REPLY EMAIL THE INFO WAS NOT PROVIDED AS TO HOW TO RE-OPEN THE ACCOUNT AND RE-DO THE VOUCHER. JUST CALL THIS NUMBER. WHEN I CALLED AND SPOKE TO TANIA SHE IS UNTRAINED AND PUT ME ON HOLD DUE TO LACK OF SKILL TO ANSWER MY QUESTIONS. WHEN I ASKED FOR A MANAGER , PUT ME ON HOLD AND AFTER A FEW MINS SHE HUNG UP THE CALL. GROUPON SEEMS TO BE A MICKEY MOUSE OPERATION WITH UNSKILLED STAFF AND BAD TECHNICAL EXPERTISE IN ***** PREVENTION & BEGS THE QUESTION: IS OUR INFO HELD BY THEM SAFE AS THEY HOLD OUR CREDIT CARD/DEBIT CARD DETAILS YET CANT ANSWER A CALL