Unhappy customer from Edgars

My father is struggling now for 2 week to get his account closed by Edgars. He went to Brits Mall -Edgars to close his account but according to Edgards his account number does not exist, but Edgars can easy sent sms when a count needs to be paid. My father sent and email to Edgars to close his account on the 3 march 2021 but no response from Edgars. The longer Edgars take to close the account to more service fees they add to be paid. Please close my fathers Edgards account (***) with a letter that indicates the account is been closed. If the account number does not exist how can Edgars still charge service fee. It is either Edgars or RCS doe not know what is going on in they business.