Dollar General faluire To give back Refund Austi Texas

i have brought a phone card from this store on 02/15/20017...The lady at store said card would work for straight talk pphone..i was charged for $58.99 for card.. when made it home was not right card..I went back the next day an Dollar General Employee said the dont do Refunds i have to call main Card holder.. I called them an operator said Even is card been scrached not spent i can get a refund.. go back up to store an they will give u an write it out on a invoied sheet an send to card place.. Now after speaking wit lady on phone go back to store.. supvisor say they couldnt.. We call card company... Now they say i had to do on a credit card or i cant get no refund..I got the operator ID Numer an Her Supvisor number after he lied an said no refunds at all..also Supviors Name at store.18778787908 is the number to get the card holder number.Names or,Tiffany id number is 15040 an her supvisor name is chistoper..The Name of Supvisor on work at DollarGeneral is Sam.. Please look into this.. i asked them where i can go in Refund this card..said no where..So i just gave them almost 60 dollars an cant be reburst."Thank you'                                                  '