Outsurance lies about premiums

I requested a quote from outsurance on a truck. When the quotation was to high I got a cheaper quote from Virseker. I phoned outsurance to cancel my insurance as Virseker was cheaper. Outsurance told me that they will match the premium of virseker and asked that I don't cancel with them (this coming from an outsurance supervisor . They ****. Outsurance still deducted the high premium from me.