Hello, I tried to look up the answer to this but could not find a thread specific enough.

I'm currently conducting my first study and am providing a $50 (AUD) eGift Card draw as an incentive. I want to know what the best eGift Card service option is for a survey that may be completed by English-speaking participants anywhere in the world. Hence, I also want a service that allows you to choose the company/business you redeem the gift card for or at least something more flexible than choosing one company pre-emptively.

Prezzee is the standard service used in Australia, but upon further research I discovered it is designed for people in Aus, NZ, the UK, and the USA. I also looked at Mastercard and they seemed more flexible with the countries it is used in but I wasn't 100% sure about it.

Any suggestions?

Thanks!