ADT pathetic service

I had cancelled the job due to unforseen circumstances. However ADT has still debited my account yet I do not have ADT security installed in my home. After numerous calls and emails, I am yet to receive my refund. I am extremely disappointed in sales technician, Mbali that has done absolutely nothing to resolve my matter from the start. I am equally as disappointed that after having contacted ADT and done all the necessary as per the conversation, my refund is hanging somewhere in thin air. I wish you could pay my refund as quick as you took it out out my account. The first time you tried to debit my account it did not go through. The second time you got it right. I would like my refund inclusive of my bank charges