Day light *******

I app**** for a cell phone contract and they told me to fax my 3 months statement. Before I could fax it they sent me an sms saying they will deduct money on my bank account for sim and connection fee. When I called them they said its for admin cost but I haven't completed the application and they have already deducted 300 from account. I told them to cancel but they are still sending me smses requesting the bank statement.