This ought to be straightforward. Are you absolutely certain you haven't had a refund to your payment card?

Why did you make 5 applications? Usually the lead traveller would do this for everyone. If they're saying it's with customer services then it probably is, and these things can take some time to work through. You can actually make things worse by chasing, and more so if you're agitated. This is a completely normal (if unwelcome) situation and is usually resolved without issues.