Purchasing TIME magazine on line

On 7th March 2021 I purchased a 12 month’s printed subscription from TIME for R579.00 as advertised on their web site. This was paid by credit card. This was therefore due to expire in April 2022. On 19th April 2022 R899.00 was deducted from this same card by TIME magazine. I DID NOT WISH to renew this subscription I have emailed time-customerervice@time.com at least 8 times and logged a query on the TIME website through the online method with no response. One email on 9th May sent me the courtesy of a reply asking for further detail which I immediately supplied. Since then I have received no further response other than my message has been forwarded to customer services.