Buy credits

I can't find how to buy credits to download some pictures

Please check out the following link to purchase credits:

https://www.moviestillsdb.com/premium-membership

I have clicked on this link and cannot see any function to buy credits. I am using my Android phone. Do I have to use a computer for your website to buy credits?

Please try on a computer and let me know if you're still having issues. Sorry for the inconvenience.