Mercantile,this is what I have a problem with

Mercantile,this is what I have a problem with. I've tried to contact them via telephone. I get no answer. Even via email I've tried ,it says address not found. *AS I WANT THE DEBIT ORDER STOPPED AND FUNDS REVERSED INTO MY ACCOUNT* [file=24063_a1f85ff***b5450d8af9006b4__https://s3-eu-west-1.amazonaws.com/pslbs/lhc-files/336e-user-files/259fd35aa225729f57b23cf584e1c66c.jpeg?X-Amz-Content-Sha256=UNSIGNED-PAYLOADandX-Amz-Algorithm=AWS4-HMAC-SHA256andX-Amz-Credential=AKIA5DGWZC5MLFWEG3MCpercent2F***2percent2Feu-west-1percent2Fs3percent2Faws4_requestandX-Amz-Date=***2T020042ZandX-Amz-SignedHeaders=hostandX-Amz-Expires=1200andX-Amz-Signature=6ce9ee1a619d71ffafa8541f830a98a3117d4065fea0613f356aa2a8399c5041 link=http://hellopeter.kobliat.com/dialog/download/24063]