Cancelling your subscription is far too much work

I registered with getmore247 some time last year, didn't really use my subscription, so I cancelled my subscription last year, 17 August 2017. They proceeded to Bill my account up until april this year. The amount of effort it takes to cancel the service is too high. Apparently a refund is being processed, however i will believe it when i see it. And how is it that there is a record of me cancelling my subscription, but they are still billing me. Whoever audits them must have a really good look at how many other people that happens to