Do this via CHAT page.

Hi ​@Hanady sorry to hear this. It is unlikely that we would take the same payment twice. Can you check your emails to see if you have purchased two orders in error? 

I have purchased a plan £6 and in my bank account, the payment was twice 

OK ​@Hanady 

We’ll shortly send you a Private Message to your Community account, so we can discuss your issue further.

To access your messages, click your profile picture in the top right hand corner and then click ‘Private Messages’.

Alternatively, if you are currently logged in, you can use the following link: https://community.idmobile.co.uk/inbox/overview

We’ll see you there.