Webuycars don't care about cash buyrers

I received the vehicle with a flat battery and despite all attempts, webuycars has dome nothing to replace my battery. Today makes a week already. Sales person said the battery was tested, and with no proof and obviously this was no honest statement. I am very upset with the kind of service I received and I think they shoukd organize to take their car back!? 😡😡😡😡😡😡😡😡😡😡😡😡