Unsubscribed but was still charged

Hi I hope someone could help me with my problem I already unsubscribed and even deleted my account in advance to avoid being charged but alas all my precaution were for naught. I was still charged.
I even emailed the support team of lingq for help but no response.

Please help

I did actually replied on your email and asked for some additional informations. Please take a look. I was unable to find your Premium account, so I need your help.