Rida Morwa used SA access to my Google Play billing info to bill my card/bank for a 6 month subscription. Help.

I enjoy SA and use it daily. 

I do not use or desire Rida's stuff as I am about arbitrage, ERs and data driven events, not retiree dividends.

The very next day after this vendor surprised me with a welcome EMAIL and a $395 unauthorized bank withdrawal, I requested an immediate refund. He has yet to respond. Could you please help expedite this.

I have logged this as a dispute at my bank and will give it a bit of time (30 days max in Canada) before they trigger fraud proceedings per normal course on such matters.

Regards as I await your input.

DAVE