Missing balance after top-up

Hey everyone, this is my first post here. Last Friday, I used my credit card to top-up my account balance so I could publish a study. I had scheduled it for publishing later that day. When I decided to publish it early, there seemed to be an error as nothing happened, and the study was returned to my drafts. However, when I try to publish it now, Prolific tells me that I have a balance of GBP 0.00 and need to top-up again. Is there anything that went wrong here? Would love some help here, thanks.