The Gardener Magazine - Poor service delivery

I paid for a 2-year subscription, but since 2020 I have not received my magazine regularly. For my January 2021 issue, I had to contact them 7 times to inform them that I have not received my magazine. They keep sending me SMSes to say the magazine was delivered, but when I check, there is no magazine in my mailbox. I have asked them on numerous occasions to investigate and report back to me, but to date, I have yet to receive any communication from them. The poor service delivery is inexcusable and totally unacceptable. When my subscription expires I will definitely not renew it.