Product Received was not what was ordered and paid for

Art was supplied to size. Stickermule reduced the art by 20% and charged us for the full-size art. Art was setup for full bleed and was ran with an 1.5" margin. The sample we order was ran full bleed and to size. Note: We had to pay for the sample. When we contacted them, all replies read as if they are an ai source. Now Stickermule want pictures to understand that what was sent is not what was ordered. Stickermule will do any things not to stand behind they products.