American Credit Mrs. Cohan threatened to serve me at my employer for nonpayment Internet

They contacted my sister via her cell phone (this was never given to them).  I called them back and told them I never proveded that information.  It was in regards to a payday loan that i applied for but not the account is closed.  Not knowing I gave them my debit card number and set up a payment plan.  They took out the money as requested. 

They tried to process the payment recently but it was declined.  Mrs. Cohan contacted me and I told her the debit card was lost and I don't have a new one yet.  She stated I needed to give a prepaid card that day (friday Dec 6).  Told her I cannot do that so she stated that it was going back to processing and they will be serving me at my place of employment.