Have you received any news? I am going through a similar situation with WGT, Trialpay, and ProFlowers (for my wife also ;)).
It seems so shady to me. The offer on WGT said that it was rewarded instantly. However, I didnt receive the instant coins so I contacted WGT. they said that I had to wait 5-7 or 5-8 days after the package was delivered. Well, its been 8 days since delivery and 13 days since the order was placed, still nothing.
After reaching out to support again I was informed that I (the customer) needed to contact a the third party (trial pay) to rectify the situation. To me, it comes off as lazy support and service. My only connection to Trial pay or Proflowers, for that matter, is through WGT. They should be taking ownership of any issues that were created on their environment from THEIR customers.
Im eagerly waiting a response from Trial Pay as I submitted a support ticket with them a few hours ago. As I hope this can be resolved and I'll never take part in any of their affiliate offers ever again.