Disgusting Service - DotSure

I have sent through cancellation of all my services on the 20th of June. I still was debited on the 25th of June. I spoke to a consultant by the name of Miranda. Explained the story to her. She was helpful at first, sent me an email to confirm cancellation, which I did. I was promised that I will be refunded in 3 days. Since then, I have being emailing her and coping in Glen Anderson who I was told is a senior manager. Up until today (17th of July) NO ONE HAS COME BACK TO ME OR REFUNDED ME EITHER. My calls and emails are going into a black hole it seems. I have to place on record that I was with Holland for 20 years and absolutely loved it, but sadly their direct base was handed over to DotSure (NOT-SURE). HATE IT HATE IT HATE IT.