Google acknowledges billing error in writing — still refuses to void the charge

I accidentally added an extra annual license due to a UI/UX error while modifying permissions for an existing user. The license has never been used. I only discovered the mistake when I started receiving failed transaction alerts from my bank. I would never knowingly purchase a duplicate of a product I already pay for annually and cannot afford twice, im new to workspace and its interface.

Google has acknowledged in writing that this was "an accidental addition during a navigation process" — yet they are still enforcing a €124.68 annual charge for a service I never intended to purchase and have never used.

I have been a Google customer for over 10 years across multiple products. I have escalated three times through official support (Case #***6). Each escalation has resulted in the same outcome: sympathy, acknowledgement of the error, and refusal to void the charge.

Failed debit orders are now accumulating bank charges on my side while Google refuses to act on their own admission.

I am invoking the Consumer Protection Act (Sections 40 and 48) and have formally requested escalation to a Regional Financial Controller. That request has also been declined.

I am not asking for a goodwill gesture. I am asking Google to honour their own acknowledgement that this charge should not exist.