Incredible Connection Tygervalleys pathetic service

IM SO DISSAPOINTED IN THE SERVICE I GOT FROM THIS STORE.. FIRST THE CASHIER DOESNT KNOW HOW TO USE A SPECIFIC TYPE OF CARD NUT DOESNT SAY SHE ISNT SURE AND MAKES A HUGE MISTAKE..THENNIM TOLD TO COME BACK THE NEXT DAY TO HAVE IT REVERSED AS THEY ARE CLOSED NOW. THEN THE NEXT DAY THE ACTING MANAGER IN CHARGE MAKES THE SAME MISTAKE WHICH CAUSES ME NOTBTO BE ABLE TO USE MY CARD ENDING UP BEING WITHOUT THE PHONE I WENT THERE TO PURCHASE. NOW I HAVE TO BE WITHOUT A PHONE UNTIL THEY CAN RECTIFY THE PROBLEM.. ANDTHE CASHIER WHICH CAUSED THE PROBLEM IN THE FIRST PLACE STILL GIVES ME ATTITUDE AFTER MESSING UP ..REALLY PATHETIC SERVICE.. LAST TIME I WILL DEAL WITH THEM