Allstate Financial Services INC submitting an electronic check las vegas, Nevada

This company sent an electronic  check thru to my bank for $300.00. I now have bouncers out & live on  a very small income from the goverment.I called the company & was put on hold for a total of 33 min. They have said i gave permission which i did not. I talked with the manager named Ray & he was so rude & said he did this because i gave hot checkes, i tried to tell him that was not so as my bank would be charging me for bouncers as they are now.      I have had my account with my bank for many years & have never bounced one before. He hung up on me a total of 3 times. I called corporate & a man named Jason said he would get to the bottom of this & return it as he could see no authorization  from me. I then called back & talked to Shaun & he said i had a poor memory but that it would take 3 to 5 days for the return of the money.Ray would keep hanging up, so i got Shaun.      It is now 7 days & still no refund. I called back at 4pm on Friday but they would not give me a # for corporate(i had lost the #)Said i would have to call back Monday!     I am frantic now as i will not be able to pay my rent. I am a senior citizen with a heart problem. I have told my children if i have a heart attack over this to call dateline & to file charges.   I hope someone will put a stop to these people in this company.