Refund for faulty Addon

Hi Again I uninstalled and fully removed the old addon, but sadly it still did not work correctly. At first, it accepted that I was using euros and things were alright, but when I changed to a different currency the amount was incorrect! The currency had changed but the conversation was wrong!!
How do I get a full refund?

Which currency you are trying to implement. I tested with all currency. Kindly provide test access to your site or we can fix it on teamviewer or some other remote access. The plugin is still used by other users without errors. Plugin has nothing to do with price calculations its inbuilt feature of litekart.

I'm fed up trying to make it work, there are obviously problems with your addon, so I can't use it, I've had to buy the other Paypal addon, so I would just appreciate a refund.

Its quite disappointing that you leave a negative review even you got full refund. Plugin requires atleast starter level knowledge of coding. The plugin is fully tested and working successfully on others client. I request for removing fake review of plugin.

There is no where to say a knowledge of coding is required to use your addon. I also received an email pointing out many error codes in your addon.

Please be informed Litecart calculate prices based on store currency and in latest error you were facing was pricing calculation of other currencies . You have to set value of currency in relaton to USD.I will shortly share a demo store link with plugin to proof my work. You are simply defaming my plugin and letting down my efforts.

Here is a demo link for proving that the plugin works successfully. 
Hey all who here in the forum  please don't get mislead by intentionally  provided negative review. Go and check plugin. Thanks. I am here to help all the genuine Litecart users.
Thanks in Advance. 
Link: http://famefy.in/litecart/