No. I've sent an e-mail about a similar problem (I can't even add my card or get passed the loading screen). It's been 5+ days and all they have said is that they're looking at my request.
You may want to try the PayPal option, more info here: https://itch.io/post/1537783
I don’t see any failed payment attempts from our end with your account, so it’s likely something else is going on. Maybe you have a browser extension enabled that’s interfering with how the page works.
Hope that helps
Dear leafo,I am a newer to itch.io . and When I try to buy the bundle for Racial Injustice and Equality , I got a error.and the error page said,“If your account has been charged please contact support with the payment code P-4916282 and we can resolve the issue.” my paypal pay $5 for
this bundle.but my account as a github account:Dangal2018, my bundle page don't have the bundle I just bought.Please send an e-mail to me for the download link. This is my frist buy in this platform ,I don't want to get a terrible experience. Thank you!