Complaint - Gym Company Boskruin

In June 2022 I advised the Gym company Boskruin that i did not intend to renew my membership when it came to an end in October 2022. Initially I was told i'm advising them too far in advance. I continued sending them the same notice email on a monthly basis. I was told that my final debit order would be deducted end October 2022. They subsequently deducted the membership fee and the additional annual admin fee. I was told the admin staff forgot to activate the cancellation. I requested the fees to to be reversed. Was told by the GM that this would be looked into. I did not get my money back. In December 2022 they once again deducted the membership fee. Once again the GM responded that he would look into it. I subsequently stopped the debit order at my bank, reversed the stop order, logged a dispute and am now receiving sinister and threatening SMS's from the Gym Company for an overdue account. The head office does not respond to any emails and phone calls are not answered!!