Why do you refresh any page that activates a transfer of something of value? Would you do it with a bank payment?
Either wait, or close the page and restart. If when you restart your merit count has gone down,then you have awarded the merit.
Just because you double clicked the button or refreshed the browser.
I hope someday someone will double merit me, lol
No, I did not refresh the page. I think the reason is that I have a slow internet and didn't notice that I already pressed the send button the reason it double sent.