Loss of trust

This business does not respond to my inquiries. I sent them a review on their website. I have a debit order for their services to deduct every 23 rd of the month. In November 2020 ADT made 2 deductions. On the 23rd Nov R512.60, and R483.00 on 25 Nov. On enquiry on this from the office in N1City, they could not provide my husband with an answer and phoned their head office in Gauteng. Also, they could not provide a satisfactory answer, instead was rude! This man phoned my husband on his way home to say that they will refund. On Dec they deducted R857.60, which is far higher than the payment. All these were sent to them with no response. I am thinking of terminating my contract with them as they have no right to deduct whatever they feel to deduct, that was not the agreement. I want them to pay back my money!