Hello @tausif.s,
Thank you for reaching out. We kindly appreciate your interest in our products. 
Unfortunately, there is no trial for our templates but you can check the preview links of any template to make sure the template looks and works as expected.
I’m afraid, it is not possible to issue a refund because our policy is tailored to Bubble’s, which is a no-refund policy. You can find more information here and here. All template sales go through the Bubble marketplace platform, making it technically impossible to issue a refund from our side, unfortunately.
However, in case you encounter such a situation you can reach out to their team at support@bubble.io, perhaps they may help.
Sure thing, you can contact us at support@zeroqode.com or you can send me a Direct Message on the forum if you need any assistance. I will be glad to help. 
Have a nice day!
Best,
Gulce