No Feedback more than 2 weeks later

I bought a voucher for Megan @ Capelli on 28 April. After I could not get hold of them for more than 24 Hours (Megan does not work for Capelli anymore for quite some time so no one knows where they are based) I cancelled the voucher. Megan eventually emailed back and could only help me 3 weeks later so I still wanted to cancel. <br> I emailed Groupon on the 29th and got an email back saying they will respond in 2 days. 3 Days later they said another 5 working days. <br> On the 8th I emailed again asking to cancel the voucher but again to no avail? <br> You say in your T+C's you can cancel but when you cancel you just don't get any feedback? How long must one wait for a refund or atleast some feedback on the status of the cancellation?