Brink's Global Services review: Discontinue service

I signed with Brinks 7/21/20 for a 36 month contract. Out of contract I chose to switch to Safe Home Security. I filled out all documents with the agent sent to assure that all documents were filed for a smooth transition. I continued to receive emails from Brinks stating I did not activate my service. I contacted my sales rep and he said call Brinks directly and discontinue service. I tried 12/30/23, 12/31/23 and again on 1/2/24 [two separate calls]. The first Brinks CS rep said I owe $1241.69 left under contract. I was out of my contract and said so when he said I signed for 3 yrs on 1/10/22. I said I did not. Called the 800 # and spoke to rep who said the same so I said send me the contract I signed and today I received a typed letter stating I signed up for 3 yrs on the 1/10/22 date that I did not. I would not signed a new contract when I was still under the original contract of 36 months signed on 7/21/20. I respectfully request you discontinue my service as I have paid for two months of non use already. I have since contacted my bank and refuse to pay you any more as I am not using your service and did not extend my contract.