I see on my Internet banking that Google play has taken £99.99 out of my account and I don't know why could you help in anyway please?

Okay, I see.
Please, follow this way:
To refund your charge:

1. Go to play.google.com.
2. At the top right, click your profile icon.
3. Select Payments & subscriptions and then Budget & order history.
4. Find the order you want to return.
5. Select Request a refund or Report a problem.
6. Choose the option that describes your situation.
7. Complete the form and note that you'd like a refund.
8. You'll get a message that says "Thank you for sharing your concerns." You'll also receive an email with a refund decision.

Is everything clear?

You are welcome! :)
Is there anything else I can do for you today?