Hello, thank you for your interest. It has asked you for your payment because our plans are subscription based - and it would only setup the necesarry in case you wanted to have a reocurring subscription later.

But since we take feedback very seriously, we acted quickly and added another option in our shop which will work without any payment info at all.
Please use this link to get to that product directly: https://blockanalytics.net/product/1-month-access/

And if there is anything else with which we can help you to test our service, feel more than welcome to let us know how we can make it even better.