Complaint Review: Thrifty propane

I still have 112 gallons left 0N my pre-by three weeks ago I called them to have my take filled they told me another dollars 66 a gal to finish filling my tank they have my credit card number to pay for the rest now I can't even get a hold of anybody when I keep trying to call there is no answer anymore Friday I talk to somebody there sounded like a foreign lady and she said she would have them call me Monday after 4 PM and nobody has ever called