1-grid charges for cancelled services

Very disappointed with 1-grid support and feedback. I cancelled one of my domain subscriptions end September 2019 and am still being charged for this service which I requested be cancelled. 1-grid continues to FAIL TO CANCEL MY SUBSCRIPTION AS REQUESTED and continues charging me for this service. I can't seem to make it clear enough that I do not want the service, nor want to pay for the service. I have no joy with being refunded the amount and they refuse to create a credit note on my account - INSTEAD, new invoices keep reflecting as "unpaid" and eventually (at random dates and random amounts) a debit order is deducted from my banking account. 1-grid comes across as SLY, ******* and CHAOTIC (especially since they appear to have no record of my previous calls, tickets or requests). They just do what they want when they want to it appears. Despite bringing my situation to the attention of their offices, 1-grid fails to provide satisfactory feedback (not to mention timeous!!) and has no regard for customer service. This company is terrible and infuriating! They also disregarded my 2 day warning that I will be complaining on HelloPeter. They don't care and they're unreachable.