Refund for Stock Monthly Membership

Hi,

So I thought I had cancelled my Stock membership as I found I did not use it as much as I thought I would during the first month, so it wouldn't be worth it for me to pay.

But it turns out I did not.

I just had the money taken out of my account, on a Saturday, and have cancelled the subscription. Is there any way I can get a refund on that?

I really don't want to use Stock right now but would want to use the CC in the future. But this is a problem for me now as it took nearly all my cash from my account, leaving me with around 2 Euros...

I would greatly appreciate if there was a way to get a refund on this month's payment, considering it literally just started an hour ago and I have not used it at all.

Thanks,
Tom

PS: I know this is the forum, but there's no support at the weekend...